Home / 29,079,423.72-40,142,865.15-20,712,180.42

Finding the Fourth Proportional to 29,079,423.72, 40,142,865.15 and 20,712,180.42

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Solution

The fourth proportional to 29,079,423.72, 40,142,865.15 and 20,712,180.42 is: 28,592,253.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,079,423.72 : 40,142,865.15 = 20,712,180.42 : x
  2. Step 2: Convert to fraction form
    29,079,423.72/40,142,865.15 = 20,712,180.42/x
  3. Step 3: Cross multiply
    29,079,423.72x = 40,142,865.15 × 20,712,180.42
  4. Step 4: Simplify right side
    29,079,423.72x = 831,446,265,562,530.38
  5. Step 5: Solve for x
    x = 831,446,265,562,530.38/29,079,423.72
  6. Step 6: Final answer
    x = 28,592,253.88

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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.