Home / 68,302,911.78-102,290,200.86-39,068,121.24

Finding the Fourth Proportional to 68,302,911.78, 102,290,200.86 and 39,068,121.24

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Solution

The fourth proportional to 68,302,911.78, 102,290,200.86 and 39,068,121.24 is: 58,508,281.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,302,911.78 : 102,290,200.86 = 39,068,121.24 : x
  2. Step 2: Convert to fraction form
    68,302,911.78/102,290,200.86 = 39,068,121.24/x
  3. Step 3: Cross multiply
    68,302,911.78x = 102,290,200.86 × 39,068,121.24
  4. Step 4: Simplify right side
    68,302,911.78x = 3,996,285,968,862,432.50
  5. Step 5: Solve for x
    x = 3,996,285,968,862,432.50/68,302,911.78
  6. Step 6: Final answer
    x = 58,508,281.20

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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.