Home / 140,591,138.80-211,012,679.40-121,443,516.40

Finding the Fourth Proportional to 140,591,138.80, 211,012,679.40 and 121,443,516.40

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Solution

The fourth proportional to 140,591,138.80, 211,012,679.40 and 121,443,516.40 is: 182,274,089.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,591,138.80 : 211,012,679.40 = 121,443,516.40 : x
  2. Step 2: Convert to fraction form
    140,591,138.80/211,012,679.40 = 121,443,516.40/x
  3. Step 3: Cross multiply
    140,591,138.80x = 211,012,679.40 × 121,443,516.40
  4. Step 4: Simplify right side
    140,591,138.80x = 25,626,121,791,321,844
  5. Step 5: Solve for x
    x = 25,626,121,791,321,844/140,591,138.80
  6. Step 6: Final answer
    x = 182,274,089.32

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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.