Home / 1,185,218,268.12-1,635,482,009.88-656,483,465.34

Finding the Fourth Proportional to 1,185,218,268.12, 1,635,482,009.88 and 656,483,465.34

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Solution

The fourth proportional to 1,185,218,268.12, 1,635,482,009.88 and 656,483,465.34 is: 905,881,158.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,185,218,268.12 : 1,635,482,009.88 = 656,483,465.34 : x
  2. Step 2: Convert to fraction form
    1,185,218,268.12/1,635,482,009.88 = 656,483,465.34/x
  3. Step 3: Cross multiply
    1,185,218,268.12x = 1,635,482,009.88 × 656,483,465.34
  4. Step 4: Simplify right side
    1,185,218,268.12x = 1,073,666,897,347,250,688
  5. Step 5: Solve for x
    x = 1,073,666,897,347,250,688/1,185,218,268.12
  6. Step 6: Final answer
    x = 905,881,158.12

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Double scale
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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.