Home / 20,925,545.86-28,891,344.81-18,713,545.30

Finding the Fourth Proportional to 20,925,545.86, 28,891,344.81 and 18,713,545.30

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Solution

The fourth proportional to 20,925,545.86, 28,891,344.81 and 18,713,545.30 is: 25,837,294.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,925,545.86 : 28,891,344.81 = 18,713,545.30 : x
  2. Step 2: Convert to fraction form
    20,925,545.86/28,891,344.81 = 18,713,545.30/x
  3. Step 3: Cross multiply
    20,925,545.86x = 28,891,344.81 × 18,713,545.30
  4. Step 4: Simplify right side
    20,925,545.86x = 540,659,489,879,854.88
  5. Step 5: Solve for x
    x = 540,659,489,879,854.88/20,925,545.86
  6. Step 6: Final answer
    x = 25,837,294.45

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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.