Home / 154,447,755.20-231,668,090.40-77,750,187.20

Finding the Fourth Proportional to 154,447,755.20, 231,668,090.40 and 77,750,187.20

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Solution

The fourth proportional to 154,447,755.20, 231,668,090.40 and 77,750,187.20 is: 116,623,497.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,447,755.20 : 231,668,090.40 = 77,750,187.20 : x
  2. Step 2: Convert to fraction form
    154,447,755.20/231,668,090.40 = 77,750,187.20/x
  3. Step 3: Cross multiply
    154,447,755.20x = 231,668,090.40 × 77,750,187.20
  4. Step 4: Simplify right side
    154,447,755.20x = 18,012,237,396,866,524
  5. Step 5: Solve for x
    x = 18,012,237,396,866,524/154,447,755.20
  6. Step 6: Final answer
    x = 116,623,497.53

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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.