Home / 120,669,565.20-166,607,312.04-112,960,127.76

Finding the Fourth Proportional to 120,669,565.20, 166,607,312.04 and 112,960,127.76

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Solution

The fourth proportional to 120,669,565.20, 166,607,312.04 and 112,960,127.76 is: 155,962,965.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,669,565.20 : 166,607,312.04 = 112,960,127.76 : x
  2. Step 2: Convert to fraction form
    120,669,565.20/166,607,312.04 = 112,960,127.76/x
  3. Step 3: Cross multiply
    120,669,565.20x = 166,607,312.04 × 112,960,127.76
  4. Step 4: Simplify right side
    120,669,565.20x = 18,819,983,253,788,588
  5. Step 5: Solve for x
    x = 18,819,983,253,788,588/120,669,565.20
  6. Step 6: Final answer
    x = 155,962,965.66

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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.