Home / 101,670,926.31-140,373,445.70-78,107,496.71

Finding the Fourth Proportional to 101,670,926.31, 140,373,445.70 and 78,107,496.71

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Solution

The fourth proportional to 101,670,926.31, 140,373,445.70 and 78,107,496.71 is: 107,840,253.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,670,926.31 : 140,373,445.70 = 78,107,496.71 : x
  2. Step 2: Convert to fraction form
    101,670,926.31/140,373,445.70 = 78,107,496.71/x
  3. Step 3: Cross multiply
    101,670,926.31x = 140,373,445.70 × 78,107,496.71
  4. Step 4: Simplify right side
    101,670,926.31x = 10,964,218,447,677,514
  5. Step 5: Solve for x
    x = 10,964,218,447,677,514/101,670,926.31
  6. Step 6: Final answer
    x = 107,840,253.31

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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.