Home / 109,940,583.40-164,910,875.10-77,691,956.20

Finding the Fourth Proportional to 109,940,583.40, 164,910,875.10 and 77,691,956.20

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Solution

The fourth proportional to 109,940,583.40, 164,910,875.10 and 77,691,956.20 is: 116,537,934.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,940,583.40 : 164,910,875.10 = 77,691,956.20 : x
  2. Step 2: Convert to fraction form
    109,940,583.40/164,910,875.10 = 77,691,956.20/x
  3. Step 3: Cross multiply
    109,940,583.40x = 164,910,875.10 × 77,691,956.20
  4. Step 4: Simplify right side
    109,940,583.40x = 12,812,248,485,172,870
  5. Step 5: Solve for x
    x = 12,812,248,485,172,870/109,940,583.40
  6. Step 6: Final answer
    x = 116,537,934.30

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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.