Home / 243,416,591.56-365,128,889.28-68,543,831.80

Finding the Fourth Proportional to 243,416,591.56, 365,128,889.28 and 68,543,831.80

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Solution

The fourth proportional to 243,416,591.56, 365,128,889.28 and 68,543,831.80 is: 102,816,874.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,416,591.56 : 365,128,889.28 = 68,543,831.80 : x
  2. Step 2: Convert to fraction form
    243,416,591.56/365,128,889.28 = 68,543,831.80/x
  3. Step 3: Cross multiply
    243,416,591.56x = 365,128,889.28 × 68,543,831.80
  4. Step 4: Simplify right side
    243,416,591.56x = 25,027,333,172,129,140
  5. Step 5: Solve for x
    x = 25,027,333,172,129,140/243,416,591.56
  6. Step 6: Final answer
    x = 102,816,874.61

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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.