Home / 162,154,781.26-243,620,205.89-103,976,443.79

Finding the Fourth Proportional to 162,154,781.26, 243,620,205.89 and 103,976,443.79

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Solution

The fourth proportional to 162,154,781.26, 243,620,205.89 and 103,976,443.79 is: 156,213,479.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,154,781.26 : 243,620,205.89 = 103,976,443.79 : x
  2. Step 2: Convert to fraction form
    162,154,781.26/243,620,205.89 = 103,976,443.79/x
  3. Step 3: Cross multiply
    162,154,781.26x = 243,620,205.89 × 103,976,443.79
  4. Step 4: Simplify right side
    162,154,781.26x = 25,330,762,642,871,652
  5. Step 5: Solve for x
    x = 25,330,762,642,871,652/162,154,781.26
  6. Step 6: Final answer
    x = 156,213,479.78

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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.