Home / 158,023,839,023.71-218,073,113,803.11-85,765,904,982.61

Finding the Fourth Proportional to 158,023,839,023.71, 218,073,113,803.11 and 85,765,904,982.61

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Solution

The fourth proportional to 158,023,839,023.71, 218,073,113,803.11 and 85,765,904,982.61 is: 118,357,066,080.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,023,839,023.71 : 218,073,113,803.11 = 85,765,904,982.61 : x
  2. Step 2: Convert to fraction form
    158,023,839,023.71/218,073,113,803.11 = 85,765,904,982.61/x
  3. Step 3: Cross multiply
    158,023,839,023.71x = 218,073,113,803.11 × 85,765,904,982.61
  4. Step 4: Simplify right side
    158,023,839,023.71x = 18,703,237,957,699,428,679,680
  5. Step 5: Solve for x
    x = 18,703,237,957,699,428,679,680/158,023,839,023.71
  6. Step 6: Final answer
    x = 118,357,066,080.98

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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.