Home / 85,214,287.20-127,746,781.20-51,149,186.40

Finding the Fourth Proportional to 85,214,287.20, 127,746,781.20 and 51,149,186.40

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Solution

The fourth proportional to 85,214,287.20, 127,746,781.20 and 51,149,186.40 is: 76,678,971.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,214,287.20 : 127,746,781.20 = 51,149,186.40 : x
  2. Step 2: Convert to fraction form
    85,214,287.20/127,746,781.20 = 51,149,186.40/x
  3. Step 3: Cross multiply
    85,214,287.20x = 127,746,781.20 × 51,149,186.40
  4. Step 4: Simplify right side
    85,214,287.20x = 6,534,143,923,598,816
  5. Step 5: Solve for x
    x = 6,534,143,923,598,816/85,214,287.20
  6. Step 6: Final answer
    x = 76,678,971.78

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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.