Home / 75,085,428.10-112,628,142.15-31,943,791.30

Finding the Fourth Proportional to 75,085,428.10, 112,628,142.15 and 31,943,791.30

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Solution

The fourth proportional to 75,085,428.10, 112,628,142.15 and 31,943,791.30 is: 47,915,686.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,085,428.10 : 112,628,142.15 = 31,943,791.30 : x
  2. Step 2: Convert to fraction form
    75,085,428.10/112,628,142.15 = 31,943,791.30/x
  3. Step 3: Cross multiply
    75,085,428.10x = 112,628,142.15 × 31,943,791.30
  4. Step 4: Simplify right side
    75,085,428.10x = 3,597,769,867,346,333.50
  5. Step 5: Solve for x
    x = 3,597,769,867,346,333.50/75,085,428.10
  6. Step 6: Final answer
    x = 47,915,686.95

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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.