Home / 79,124,947.44-118,676,647.04-20,827,743.28

Finding the Fourth Proportional to 79,124,947.44, 118,676,647.04 and 20,827,743.28

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Solution

The fourth proportional to 79,124,947.44, 118,676,647.04 and 20,827,743.28 is: 31,238,778.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,124,947.44 : 118,676,647.04 = 20,827,743.28 : x
  2. Step 2: Convert to fraction form
    79,124,947.44/118,676,647.04 = 20,827,743.28/x
  3. Step 3: Cross multiply
    79,124,947.44x = 118,676,647.04 × 20,827,743.28
  4. Step 4: Simplify right side
    79,124,947.44x = 2,471,766,737,880,292
  5. Step 5: Solve for x
    x = 2,471,766,737,880,292/79,124,947.44
  6. Step 6: Final answer
    x = 31,238,778.89

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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.