Home / 1,185,218,246.10-1,635,481,979.52-656,483,443.32

Finding the Fourth Proportional to 1,185,218,246.10, 1,635,481,979.52 and 656,483,443.32

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Solution

The fourth proportional to 1,185,218,246.10, 1,635,481,979.52 and 656,483,443.32 is: 905,881,127.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,185,218,246.10 : 1,635,481,979.52 = 656,483,443.32 : x
  2. Step 2: Convert to fraction form
    1,185,218,246.10/1,635,481,979.52 = 656,483,443.32/x
  3. Step 3: Cross multiply
    1,185,218,246.10x = 1,635,481,979.52 × 656,483,443.32
  4. Step 4: Simplify right side
    1,185,218,246.10x = 1,073,666,841,403,099,392
  5. Step 5: Solve for x
    x = 1,073,666,841,403,099,392/1,185,218,246.10
  6. Step 6: Final answer
    x = 905,881,127.75

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Double scale
Find fourth proportional to 1,185,218,247.10, 1,635,481,980.90 and 656,483,444.32
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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.