Home / 12,960,100.70-19,440,151.05-12,771,143.90

Finding the Fourth Proportional to 12,960,100.70, 19,440,151.05 and 12,771,143.90

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Solution

The fourth proportional to 12,960,100.70, 19,440,151.05 and 12,771,143.90 is: 19,156,715.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,960,100.70 : 19,440,151.05 = 12,771,143.90 : x
  2. Step 2: Convert to fraction form
    12,960,100.70/19,440,151.05 = 12,771,143.90/x
  3. Step 3: Cross multiply
    12,960,100.70x = 19,440,151.05 × 12,771,143.90
  4. Step 4: Simplify right side
    12,960,100.70x = 248,272,966,497,286.12
  5. Step 5: Solve for x
    x = 248,272,966,497,286.12/12,960,100.70
  6. Step 6: Final answer
    x = 19,156,715.85

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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.