Home / 1,185,218,244.09-1,635,481,976.76-656,483,441.31

Finding the Fourth Proportional to 1,185,218,244.09, 1,635,481,976.76 and 656,483,441.31

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Solution

The fourth proportional to 1,185,218,244.09, 1,635,481,976.76 and 656,483,441.31 is: 905,881,124.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,185,218,244.09 : 1,635,481,976.76 = 656,483,441.31 : x
  2. Step 2: Convert to fraction form
    1,185,218,244.09/1,635,481,976.76 = 656,483,441.31/x
  3. Step 3: Cross multiply
    1,185,218,244.09x = 1,635,481,976.76 × 656,483,441.31
  4. Step 4: Simplify right side
    1,185,218,244.09x = 1,073,666,836,303,886,208
  5. Step 5: Solve for x
    x = 1,073,666,836,303,886,208/1,185,218,244.09
  6. Step 6: Final answer
    x = 905,881,124.98

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Half scale
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Double scale
Find fourth proportional to 1,185,218,245.09, 1,635,481,978.14 and 656,483,442.31
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.