Home / 642,215,014.38-886,281,081.18-359,962,671.96

Finding the Fourth Proportional to 642,215,014.38, 886,281,081.18 and 359,962,671.96

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Solution

The fourth proportional to 642,215,014.38, 886,281,081.18 and 359,962,671.96 is: 496,762,141.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,215,014.38 : 886,281,081.18 = 359,962,671.96 : x
  2. Step 2: Convert to fraction form
    642,215,014.38/886,281,081.18 = 359,962,671.96/x
  3. Step 3: Cross multiply
    642,215,014.38x = 886,281,081.18 × 359,962,671.96
  4. Step 4: Simplify right side
    642,215,014.38x = 319,028,106,089,150,400
  5. Step 5: Solve for x
    x = 319,028,106,089,150,400/642,215,014.38
  6. Step 6: Final answer
    x = 496,762,141.88

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.