Home / 78,613,739.43-108,487,390.82-45,593,560.50

Finding the Fourth Proportional to 78,613,739.43, 108,487,390.82 and 45,593,560.50

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Solution

The fourth proportional to 78,613,739.43, 108,487,390.82 and 45,593,560.50 is: 62,919,363.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,613,739.43 : 108,487,390.82 = 45,593,560.50 : x
  2. Step 2: Convert to fraction form
    78,613,739.43/108,487,390.82 = 45,593,560.50/x
  3. Step 3: Cross multiply
    78,613,739.43x = 108,487,390.82 × 45,593,560.50
  4. Step 4: Simplify right side
    78,613,739.43x = 4,946,326,416,838,814
  5. Step 5: Solve for x
    x = 4,946,326,416,838,814/78,613,739.43
  6. Step 6: Final answer
    x = 62,919,363.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.