Home / 85,214,281.20-127,746,772.20-51,149,180.40

Finding the Fourth Proportional to 85,214,281.20, 127,746,772.20 and 51,149,180.40

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Solution

The fourth proportional to 85,214,281.20, 127,746,772.20 and 51,149,180.40 is: 76,678,962.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,214,281.20 : 127,746,772.20 = 51,149,180.40 : x
  2. Step 2: Convert to fraction form
    85,214,281.20/127,746,772.20 = 51,149,180.40/x
  3. Step 3: Cross multiply
    85,214,281.20x = 127,746,772.20 × 51,149,180.40
  4. Step 4: Simplify right side
    85,214,281.20x = 6,534,142,696,775,505
  5. Step 5: Solve for x
    x = 6,534,142,696,775,505/85,214,281.20
  6. Step 6: Final answer
    x = 76,678,962.78

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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.