Home / 123,702,418.89-170,712,285.39-67,949,007.12

Finding the Fourth Proportional to 123,702,418.89, 170,712,285.39 and 67,949,007.12

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Solution

The fourth proportional to 123,702,418.89, 170,712,285.39 and 67,949,007.12 is: 93,771,248.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,702,418.89 : 170,712,285.39 = 67,949,007.12 : x
  2. Step 2: Convert to fraction form
    123,702,418.89/170,712,285.39 = 67,949,007.12/x
  3. Step 3: Cross multiply
    123,702,418.89x = 170,712,285.39 × 67,949,007.12
  4. Step 4: Simplify right side
    123,702,418.89x = 11,599,730,295,436,582
  5. Step 5: Solve for x
    x = 11,599,730,295,436,582/123,702,418.89
  6. Step 6: Final answer
    x = 93,771,248.77

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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.