Home / 75,079,906.80-112,619,860.20-54,513,140.10

Finding the Fourth Proportional to 75,079,906.80, 112,619,860.20 and 54,513,140.10

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Solution

The fourth proportional to 75,079,906.80, 112,619,860.20 and 54,513,140.10 is: 81,769,710.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,079,906.80 : 112,619,860.20 = 54,513,140.10 : x
  2. Step 2: Convert to fraction form
    75,079,906.80/112,619,860.20 = 54,513,140.10/x
  3. Step 3: Cross multiply
    75,079,906.80x = 112,619,860.20 × 54,513,140.10
  4. Step 4: Simplify right side
    75,079,906.80x = 6,139,262,217,125,014
  5. Step 5: Solve for x
    x = 6,139,262,217,125,014/75,079,906.80
  6. Step 6: Final answer
    x = 81,769,710.15

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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.