Home / 810,244,780.28-1,118,123,221.56-457,813,204.19

Finding the Fourth Proportional to 810,244,780.28, 1,118,123,221.56 and 457,813,204.19

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Solution

The fourth proportional to 810,244,780.28, 1,118,123,221.56 and 457,813,204.19 is: 631,773,986.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,244,780.28 : 1,118,123,221.56 = 457,813,204.19 : x
  2. Step 2: Convert to fraction form
    810,244,780.28/1,118,123,221.56 = 457,813,204.19/x
  3. Step 3: Cross multiply
    810,244,780.28x = 1,118,123,221.56 × 457,813,204.19
  4. Step 4: Simplify right side
    810,244,780.28x = 511,891,574,736,038,272
  5. Step 5: Solve for x
    x = 511,891,574,736,038,272/810,244,780.28
  6. Step 6: Final answer
    x = 631,773,986.33

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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.