Home / 79,841,136.80-119,761,705.20-54,331,968.80

Finding the Fourth Proportional to 79,841,136.80, 119,761,705.20 and 54,331,968.80

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Solution

The fourth proportional to 79,841,136.80, 119,761,705.20 and 54,331,968.80 is: 81,497,953.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,841,136.80 : 119,761,705.20 = 54,331,968.80 : x
  2. Step 2: Convert to fraction form
    79,841,136.80/119,761,705.20 = 54,331,968.80/x
  3. Step 3: Cross multiply
    79,841,136.80x = 119,761,705.20 × 54,331,968.80
  4. Step 4: Simplify right side
    79,841,136.80x = 6,506,889,230,361,198
  5. Step 5: Solve for x
    x = 6,506,889,230,361,198/79,841,136.80
  6. Step 6: Final answer
    x = 81,497,953.20

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Similar ratio
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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.