Home / 458,360,375.20-687,540,562.80-155,780,663.20

Finding the Fourth Proportional to 458,360,375.20, 687,540,562.80 and 155,780,663.20

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Solution

The fourth proportional to 458,360,375.20, 687,540,562.80 and 155,780,663.20 is: 233,670,994.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,360,375.20 : 687,540,562.80 = 155,780,663.20 : x
  2. Step 2: Convert to fraction form
    458,360,375.20/687,540,562.80 = 155,780,663.20/x
  3. Step 3: Cross multiply
    458,360,375.20x = 687,540,562.80 × 155,780,663.20
  4. Step 4: Simplify right side
    458,360,375.20x = 107,105,524,849,885,232
  5. Step 5: Solve for x
    x = 107,105,524,849,885,232/458,360,375.20
  6. Step 6: Final answer
    x = 233,670,994.80

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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.