Home / 75,917,726.40-113,876,589.60-72,390,532.80

Finding the Fourth Proportional to 75,917,726.40, 113,876,589.60 and 72,390,532.80

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Solution

The fourth proportional to 75,917,726.40, 113,876,589.60 and 72,390,532.80 is: 108,585,799.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,917,726.40 : 113,876,589.60 = 72,390,532.80 : x
  2. Step 2: Convert to fraction form
    75,917,726.40/113,876,589.60 = 72,390,532.80/x
  3. Step 3: Cross multiply
    75,917,726.40x = 113,876,589.60 × 72,390,532.80
  4. Step 4: Simplify right side
    75,917,726.40x = 8,243,586,994,590,938
  5. Step 5: Solve for x
    x = 8,243,586,994,590,938/75,917,726.40
  6. Step 6: Final answer
    x = 108,585,799.20

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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.