Home / 78,894,265.52-117,763,655.14-69,575,524.40

Finding the Fourth Proportional to 78,894,265.52, 117,763,655.14 and 69,575,524.40

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Solution

The fourth proportional to 78,894,265.52, 117,763,655.14 and 69,575,524.40 is: 103,853,784.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,894,265.52 : 117,763,655.14 = 69,575,524.40 : x
  2. Step 2: Convert to fraction form
    78,894,265.52/117,763,655.14 = 69,575,524.40/x
  3. Step 3: Cross multiply
    78,894,265.52x = 117,763,655.14 × 69,575,524.40
  4. Step 4: Simplify right side
    78,894,265.52x = 8,193,468,061,626,256
  5. Step 5: Solve for x
    x = 8,193,468,061,626,256/78,894,265.52
  6. Step 6: Final answer
    x = 103,853,784.65

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.