Home / 79,488,001.40-119,232,002.10-28,371,687.80

Finding the Fourth Proportional to 79,488,001.40, 119,232,002.10 and 28,371,687.80

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Solution

The fourth proportional to 79,488,001.40, 119,232,002.10 and 28,371,687.80 is: 42,557,531.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,488,001.40 : 119,232,002.10 = 28,371,687.80 : x
  2. Step 2: Convert to fraction form
    79,488,001.40/119,232,002.10 = 28,371,687.80/x
  3. Step 3: Cross multiply
    79,488,001.40x = 119,232,002.10 × 28,371,687.80
  4. Step 4: Simplify right side
    79,488,001.40x = 3,382,813,139,350,144.50
  5. Step 5: Solve for x
    x = 3,382,813,139,350,144.50/79,488,001.40
  6. Step 6: Final answer
    x = 42,557,531.70

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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.