Home / 289,309,740.46-399,247,138.42-157,150,841.92

Finding the Fourth Proportional to 289,309,740.46, 399,247,138.42 and 157,150,841.92

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Solution

The fourth proportional to 289,309,740.46, 399,247,138.42 and 157,150,841.92 is: 216,867,997.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,309,740.46 : 399,247,138.42 = 157,150,841.92 : x
  2. Step 2: Convert to fraction form
    289,309,740.46/399,247,138.42 = 157,150,841.92/x
  3. Step 3: Cross multiply
    289,309,740.46x = 399,247,138.42 × 157,150,841.92
  4. Step 4: Simplify right side
    289,309,740.46x = 62,742,023,936,853,776
  5. Step 5: Solve for x
    x = 62,742,023,936,853,776/289,309,740.46
  6. Step 6: Final answer
    x = 216,867,997.04

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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.