Home / 15,402,545.28-21,254,704.83-8,431,887.38

Finding the Fourth Proportional to 15,402,545.28, 21,254,704.83 and 8,431,887.38

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Solution

The fourth proportional to 15,402,545.28, 21,254,704.83 and 8,431,887.38 is: 11,635,562.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,402,545.28 : 21,254,704.83 = 8,431,887.38 : x
  2. Step 2: Convert to fraction form
    15,402,545.28/21,254,704.83 = 8,431,887.38/x
  3. Step 3: Cross multiply
    15,402,545.28x = 21,254,704.83 × 8,431,887.38
  4. Step 4: Simplify right side
    15,402,545.28x = 179,217,277,421,702.06
  5. Step 5: Solve for x
    x = 179,217,277,421,702.06/15,402,545.28
  6. Step 6: Final answer
    x = 11,635,562.45

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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.