Home / 94,644,121.20-141,966,181.80-78,488,314.80

Finding the Fourth Proportional to 94,644,121.20, 141,966,181.80 and 78,488,314.80

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Solution

The fourth proportional to 94,644,121.20, 141,966,181.80 and 78,488,314.80 is: 117,732,472.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,644,121.20 : 141,966,181.80 = 78,488,314.80 : x
  2. Step 2: Convert to fraction form
    94,644,121.20/141,966,181.80 = 78,488,314.80/x
  3. Step 3: Cross multiply
    94,644,121.20x = 141,966,181.80 × 78,488,314.80
  4. Step 4: Simplify right side
    94,644,121.20x = 11,142,686,368,072,432
  5. Step 5: Solve for x
    x = 11,142,686,368,072,432/94,644,121.20
  6. Step 6: Final answer
    x = 117,732,472.20

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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.