Home / 72,261,658.80-108,356,621.40-26,201,689.20

Finding the Fourth Proportional to 72,261,658.80, 108,356,621.40 and 26,201,689.20

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Solution

The fourth proportional to 72,261,658.80, 108,356,621.40 and 26,201,689.20 is: 39,289,528.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,261,658.80 : 108,356,621.40 = 26,201,689.20 : x
  2. Step 2: Convert to fraction form
    72,261,658.80/108,356,621.40 = 26,201,689.20/x
  3. Step 3: Cross multiply
    72,261,658.80x = 108,356,621.40 × 26,201,689.20
  4. Step 4: Simplify right side
    72,261,658.80x = 2,839,126,516,684,869
  5. Step 5: Solve for x
    x = 2,839,126,516,684,869/72,261,658.80
  6. Step 6: Final answer
    x = 39,289,528.69

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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.