Home / 521,190,441.90-781,785,035.55-133,013,313.90

Finding the Fourth Proportional to 521,190,441.90, 781,785,035.55 and 133,013,313.90

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Solution

The fourth proportional to 521,190,441.90, 781,785,035.55 and 133,013,313.90 is: 199,519,810.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,190,441.90 : 781,785,035.55 = 133,013,313.90 : x
  2. Step 2: Convert to fraction form
    521,190,441.90/781,785,035.55 = 133,013,313.90/x
  3. Step 3: Cross multiply
    521,190,441.90x = 781,785,035.55 × 133,013,313.90
  4. Step 4: Simplify right side
    521,190,441.90x = 103,987,818,335,934,800
  5. Step 5: Solve for x
    x = 103,987,818,335,934,800/521,190,441.90
  6. Step 6: Final answer
    x = 199,519,810.76

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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.