Home / 20,684,463.68-28,542,447.51-12,735,743.84

Finding the Fourth Proportional to 20,684,463.68, 28,542,447.51 and 12,735,743.84

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Solution

The fourth proportional to 20,684,463.68, 28,542,447.51 and 12,735,743.84 is: 17,574,025.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,684,463.68 : 28,542,447.51 = 12,735,743.84 : x
  2. Step 2: Convert to fraction form
    20,684,463.68/28,542,447.51 = 12,735,743.84/x
  3. Step 3: Cross multiply
    20,684,463.68x = 28,542,447.51 × 12,735,743.84
  4. Step 4: Simplify right side
    20,684,463.68x = 363,509,299,911,293.62
  5. Step 5: Solve for x
    x = 363,509,299,911,293.62/20,684,463.68
  6. Step 6: Final answer
    x = 17,574,025.88

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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.