Home / 13,565,614.49-18,720,543.71-7,454,436.65

Finding the Fourth Proportional to 13,565,614.49, 18,720,543.71 and 7,454,436.65

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Solution

The fourth proportional to 13,565,614.49, 18,720,543.71 and 7,454,436.65 is: 10,287,120.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,565,614.49 : 18,720,543.71 = 7,454,436.65 : x
  2. Step 2: Convert to fraction form
    13,565,614.49/18,720,543.71 = 7,454,436.65/x
  3. Step 3: Cross multiply
    13,565,614.49x = 18,720,543.71 × 7,454,436.65
  4. Step 4: Simplify right side
    13,565,614.49x = 139,551,107,008,876.05
  5. Step 5: Solve for x
    x = 139,551,107,008,876.05/13,565,614.49
  6. Step 6: Final answer
    x = 10,287,120.22

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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.