Home / 78,732,022.80-118,098,034.20-48,456,944.40

Finding the Fourth Proportional to 78,732,022.80, 118,098,034.20 and 48,456,944.40

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Solution

The fourth proportional to 78,732,022.80, 118,098,034.20 and 48,456,944.40 is: 72,685,416.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,732,022.80 : 118,098,034.20 = 48,456,944.40 : x
  2. Step 2: Convert to fraction form
    78,732,022.80/118,098,034.20 = 48,456,944.40/x
  3. Step 3: Cross multiply
    78,732,022.80x = 118,098,034.20 × 48,456,944.40
  4. Step 4: Simplify right side
    78,732,022.80x = 5,722,669,876,978,698
  5. Step 5: Solve for x
    x = 5,722,669,876,978,698/78,732,022.80
  6. Step 6: Final answer
    x = 72,685,416.60

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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.