Home / 85,002,078.60-127,503,117.90-50,989,854.60

Finding the Fourth Proportional to 85,002,078.60, 127,503,117.90 and 50,989,854.60

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Solution

The fourth proportional to 85,002,078.60, 127,503,117.90 and 50,989,854.60 is: 76,484,781.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,002,078.60 : 127,503,117.90 = 50,989,854.60 : x
  2. Step 2: Convert to fraction form
    85,002,078.60/127,503,117.90 = 50,989,854.60/x
  3. Step 3: Cross multiply
    85,002,078.60x = 127,503,117.90 × 50,989,854.60
  4. Step 4: Simplify right side
    85,002,078.60x = 6,501,365,442,767,658
  5. Step 5: Solve for x
    x = 6,501,365,442,767,658/85,002,078.60
  6. Step 6: Final answer
    x = 76,484,781.90

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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.