Home / 425,376,007.20-638,054,679.60-118,659,463.20

Finding the Fourth Proportional to 425,376,007.20, 638,054,679.60 and 118,659,463.20

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Solution

The fourth proportional to 425,376,007.20, 638,054,679.60 and 118,659,463.20 is: 177,986,591.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,376,007.20 : 638,054,679.60 = 118,659,463.20 : x
  2. Step 2: Convert to fraction form
    425,376,007.20/638,054,679.60 = 118,659,463.20/x
  3. Step 3: Cross multiply
    425,376,007.20x = 638,054,679.60 × 118,659,463.20
  4. Step 4: Simplify right side
    425,376,007.20x = 75,711,225,773,584,000
  5. Step 5: Solve for x
    x = 75,711,225,773,584,000/425,376,007.20
  6. Step 6: Final answer
    x = 177,986,591.84

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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.