Home / 100,087,465.12-138,079,654.50-60,897,824.80

Finding the Fourth Proportional to 100,087,465.12, 138,079,654.50 and 60,897,824.80

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Solution

The fourth proportional to 100,087,465.12, 138,079,654.50 and 60,897,824.80 is: 84,014,023.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,087,465.12 : 138,079,654.50 = 60,897,824.80 : x
  2. Step 2: Convert to fraction form
    100,087,465.12/138,079,654.50 = 60,897,824.80/x
  3. Step 3: Cross multiply
    100,087,465.12x = 138,079,654.50 × 60,897,824.80
  4. Step 4: Simplify right side
    100,087,465.12x = 8,408,750,608,185,531
  5. Step 5: Solve for x
    x = 8,408,750,608,185,531/100,087,465.12
  6. Step 6: Final answer
    x = 84,014,023.12

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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.