Home / 83,047,164.80-124,570,747.20-78,264,195.80

Finding the Fourth Proportional to 83,047,164.80, 124,570,747.20 and 78,264,195.80

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Solution

The fourth proportional to 83,047,164.80, 124,570,747.20 and 78,264,195.80 is: 117,396,293.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,047,164.80 : 124,570,747.20 = 78,264,195.80 : x
  2. Step 2: Convert to fraction form
    83,047,164.80/124,570,747.20 = 78,264,195.80/x
  3. Step 3: Cross multiply
    83,047,164.80x = 124,570,747.20 × 78,264,195.80
  4. Step 4: Simplify right side
    83,047,164.80x = 9,749,429,349,813,102
  5. Step 5: Solve for x
    x = 9,749,429,349,813,102/83,047,164.80
  6. Step 6: Final answer
    x = 117,396,293.70

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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.