Home / 145,007,707.20-217,511,560.80-87,676,814.40

Finding the Fourth Proportional to 145,007,707.20, 217,511,560.80 and 87,676,814.40

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Solution

The fourth proportional to 145,007,707.20, 217,511,560.80 and 87,676,814.40 is: 131,515,221.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,007,707.20 : 217,511,560.80 = 87,676,814.40 : x
  2. Step 2: Convert to fraction form
    145,007,707.20/217,511,560.80 = 87,676,814.40/x
  3. Step 3: Cross multiply
    145,007,707.20x = 217,511,560.80 × 87,676,814.40
  4. Step 4: Simplify right side
    145,007,707.20x = 19,070,720,746,115,916
  5. Step 5: Solve for x
    x = 19,070,720,746,115,916/145,007,707.20
  6. Step 6: Final answer
    x = 131,515,221.60

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1.5x scale

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.