Home / 79,841,026.60-119,761,539.90-71,763,123.40

Finding the Fourth Proportional to 79,841,026.60, 119,761,539.90 and 71,763,123.40

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Solution

The fourth proportional to 79,841,026.60, 119,761,539.90 and 71,763,123.40 is: 107,644,685.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,841,026.60 : 119,761,539.90 = 71,763,123.40 : x
  2. Step 2: Convert to fraction form
    79,841,026.60/119,761,539.90 = 71,763,123.40/x
  3. Step 3: Cross multiply
    79,841,026.60x = 119,761,539.90 × 71,763,123.40
  4. Step 4: Simplify right side
    79,841,026.60x = 8,594,462,166,417,725
  5. Step 5: Solve for x
    x = 8,594,462,166,417,725/79,841,026.60
  6. Step 6: Final answer
    x = 107,644,685.10

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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.