Home / 459,729,066.40-689,591,785.20-136,612,938.40

Finding the Fourth Proportional to 459,729,066.40, 689,591,785.20 and 136,612,938.40

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Solution

The fourth proportional to 459,729,066.40, 689,591,785.20 and 136,612,938.40 is: 204,918,868.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,729,066.40 : 689,591,785.20 = 136,612,938.40 : x
  2. Step 2: Convert to fraction form
    459,729,066.40/689,591,785.20 = 136,612,938.40/x
  3. Step 3: Cross multiply
    459,729,066.40x = 689,591,785.20 × 136,612,938.40
  4. Step 4: Simplify right side
    459,729,066.40x = 94,207,160,072,673,648
  5. Step 5: Solve for x
    x = 94,207,160,072,673,648/459,729,066.40
  6. Step 6: Final answer
    x = 204,918,868.43

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.