Home / 15,320,931.14-21,144,800.50-8,796,605.78

Finding the Fourth Proportional to 15,320,931.14, 21,144,800.50 and 8,796,605.78

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Solution

The fourth proportional to 15,320,931.14, 21,144,800.50 and 8,796,605.78 is: 12,140,415.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,320,931.14 : 21,144,800.50 = 8,796,605.78 : x
  2. Step 2: Convert to fraction form
    15,320,931.14/21,144,800.50 = 8,796,605.78/x
  3. Step 3: Cross multiply
    15,320,931.14x = 21,144,800.50 × 8,796,605.78
  4. Step 4: Simplify right side
    15,320,931.14x = 186,002,474,167,531.38
  5. Step 5: Solve for x
    x = 186,002,474,167,531.38/15,320,931.14
  6. Step 6: Final answer
    x = 12,140,415.78

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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.