Home / 157,977,397.12-218,027,222.37-91,900,680.39

Finding the Fourth Proportional to 157,977,397.12, 218,027,222.37 and 91,900,680.39

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Solution

The fourth proportional to 157,977,397.12, 218,027,222.37 and 91,900,680.39 is: 126,833,651.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,977,397.12 : 218,027,222.37 = 91,900,680.39 : x
  2. Step 2: Convert to fraction form
    157,977,397.12/218,027,222.37 = 91,900,680.39/x
  3. Step 3: Cross multiply
    157,977,397.12x = 218,027,222.37 × 91,900,680.39
  4. Step 4: Simplify right side
    157,977,397.12x = 20,036,850,079,344,828
  5. Step 5: Solve for x
    x = 20,036,850,079,344,828/157,977,397.12
  6. Step 6: Final answer
    x = 126,833,651.17

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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.