Home / 79,841,131.20-119,761,696.80-28,724,817.60

Finding the Fourth Proportional to 79,841,131.20, 119,761,696.80 and 28,724,817.60

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Solution

The fourth proportional to 79,841,131.20, 119,761,696.80 and 28,724,817.60 is: 43,087,226.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,841,131.20 : 119,761,696.80 = 28,724,817.60 : x
  2. Step 2: Convert to fraction form
    79,841,131.20/119,761,696.80 = 28,724,817.60/x
  3. Step 3: Cross multiply
    79,841,131.20x = 119,761,696.80 × 28,724,817.60
  4. Step 4: Simplify right side
    79,841,131.20x = 3,440,132,896,046,504
  5. Step 5: Solve for x
    x = 3,440,132,896,046,504/79,841,131.20
  6. Step 6: Final answer
    x = 43,087,226.40

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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.