Home / 120,271,463.28-165,974,620.59-65,267,319.78

Finding the Fourth Proportional to 120,271,463.28, 165,974,620.59 and 65,267,319.78

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Solution

The fourth proportional to 120,271,463.28, 165,974,620.59 and 65,267,319.78 is: 90,068,901.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,271,463.28 : 165,974,620.59 = 65,267,319.78 : x
  2. Step 2: Convert to fraction form
    120,271,463.28/165,974,620.59 = 65,267,319.78/x
  3. Step 3: Cross multiply
    120,271,463.28x = 165,974,620.59 × 65,267,319.78
  4. Step 4: Simplify right side
    120,271,463.28x = 10,832,718,637,411,702
  5. Step 5: Solve for x
    x = 10,832,718,637,411,702/120,271,463.28
  6. Step 6: Final answer
    x = 90,068,901.98

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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.