Home / 72,986,184.50-100,716,836.60-39,946,366.31

Finding the Fourth Proportional to 72,986,184.50, 100,716,836.60 and 39,946,366.31

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Solution

The fourth proportional to 72,986,184.50, 100,716,836.60 and 39,946,366.31 is: 55,123,742.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,986,184.50 : 100,716,836.60 = 39,946,366.31 : x
  2. Step 2: Convert to fraction form
    72,986,184.50/100,716,836.60 = 39,946,366.31/x
  3. Step 3: Cross multiply
    72,986,184.50x = 100,716,836.60 × 39,946,366.31
  4. Step 4: Simplify right side
    72,986,184.50x = 4,023,271,647,904,430.50
  5. Step 5: Solve for x
    x = 4,023,271,647,904,430.50/72,986,184.50
  6. Step 6: Final answer
    x = 55,123,742.61

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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.