Home / 25,730,499.30-35,509,247.01-15,417,000.78

Finding the Fourth Proportional to 25,730,499.30, 35,509,247.01 and 15,417,000.78

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Solution

The fourth proportional to 25,730,499.30, 35,509,247.01 and 15,417,000.78 is: 21,276,154.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,730,499.30 : 35,509,247.01 = 15,417,000.78 : x
  2. Step 2: Convert to fraction form
    25,730,499.30/35,509,247.01 = 15,417,000.78/x
  3. Step 3: Cross multiply
    25,730,499.30x = 35,509,247.01 × 15,417,000.78
  4. Step 4: Simplify right side
    25,730,499.30x = 547,446,088,850,382.62
  5. Step 5: Solve for x
    x = 547,446,088,850,382.62/25,730,499.30
  6. Step 6: Final answer
    x = 21,276,154.90

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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.