Home / 102,006,401.90-140,715,800.17-64,772,978.54

Finding the Fourth Proportional to 102,006,401.90, 140,715,800.17 and 64,772,978.54

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Solution

The fourth proportional to 102,006,401.90, 140,715,800.17 and 64,772,978.54 is: 89,353,034.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,006,401.90 : 140,715,800.17 = 64,772,978.54 : x
  2. Step 2: Convert to fraction form
    102,006,401.90/140,715,800.17 = 64,772,978.54/x
  3. Step 3: Cross multiply
    102,006,401.90x = 140,715,800.17 × 64,772,978.54
  4. Step 4: Simplify right side
    102,006,401.90x = 9,114,581,503,622,894
  5. Step 5: Solve for x
    x = 9,114,581,503,622,894/102,006,401.90
  6. Step 6: Final answer
    x = 89,353,034.07

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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.