Home / 13,543,900.12-18,690,810.78-7,432,897.24

Finding the Fourth Proportional to 13,543,900.12, 18,690,810.78 and 7,432,897.24

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Solution

The fourth proportional to 13,543,900.12, 18,690,810.78 and 7,432,897.24 is: 10,257,523.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,543,900.12 : 18,690,810.78 = 7,432,897.24 : x
  2. Step 2: Convert to fraction form
    13,543,900.12/18,690,810.78 = 7,432,897.24/x
  3. Step 3: Cross multiply
    13,543,900.12x = 18,690,810.78 × 7,432,897.24
  4. Step 4: Simplify right side
    13,543,900.12x = 138,926,875,860,024.27
  5. Step 5: Solve for x
    x = 138,926,875,860,024.27/13,543,900.12
  6. Step 6: Final answer
    x = 10,257,523.65

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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.