Home / 78,732,187.20-118,098,280.80-53,034,062.40

Finding the Fourth Proportional to 78,732,187.20, 118,098,280.80 and 53,034,062.40

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Solution

The fourth proportional to 78,732,187.20, 118,098,280.80 and 53,034,062.40 is: 79,551,093.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,732,187.20 : 118,098,280.80 = 53,034,062.40 : x
  2. Step 2: Convert to fraction form
    78,732,187.20/118,098,280.80 = 53,034,062.40/x
  3. Step 3: Cross multiply
    78,732,187.20x = 118,098,280.80 × 53,034,062.40
  4. Step 4: Simplify right side
    78,732,187.20x = 6,263,231,593,279,922
  5. Step 5: Solve for x
    x = 6,263,231,593,279,922/78,732,187.20
  6. Step 6: Final answer
    x = 79,551,093.60

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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.