Home / 71,856,051.40-107,784,077.10-20,739,737.80

Finding the Fourth Proportional to 71,856,051.40, 107,784,077.10 and 20,739,737.80

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Solution

The fourth proportional to 71,856,051.40, 107,784,077.10 and 20,739,737.80 is: 31,109,606.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,856,051.40 : 107,784,077.10 = 20,739,737.80 : x
  2. Step 2: Convert to fraction form
    71,856,051.40/107,784,077.10 = 20,739,737.80/x
  3. Step 3: Cross multiply
    71,856,051.40x = 107,784,077.10 × 20,739,737.80
  4. Step 4: Simplify right side
    71,856,051.40x = 2,235,413,498,068,984.25
  5. Step 5: Solve for x
    x = 2,235,413,498,068,984.25/71,856,051.40
  6. Step 6: Final answer
    x = 31,109,606.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.