Home / 20,703,490.79-28,577,288.84-13,361,338.13

Finding the Fourth Proportional to 20,703,490.79, 28,577,288.84 and 13,361,338.13

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Solution

The fourth proportional to 20,703,490.79, 28,577,288.84 and 13,361,338.13 is: 18,442,823.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,703,490.79 : 28,577,288.84 = 13,361,338.13 : x
  2. Step 2: Convert to fraction form
    20,703,490.79/28,577,288.84 = 13,361,338.13/x
  3. Step 3: Cross multiply
    20,703,490.79x = 28,577,288.84 × 13,361,338.13
  4. Step 4: Simplify right side
    20,703,490.79x = 381,830,818,820,222.38
  5. Step 5: Solve for x
    x = 381,830,818,820,222.38/20,703,490.79
  6. Step 6: Final answer
    x = 18,442,823.13

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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.