Home / 287,543,293.56-431,314,919.17-69,193,658.84

Finding the Fourth Proportional to 287,543,293.56, 431,314,919.17 and 69,193,658.84

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Solution

The fourth proportional to 287,543,293.56, 431,314,919.17 and 69,193,658.84 is: 103,790,483.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,543,293.56 : 431,314,919.17 = 69,193,658.84 : x
  2. Step 2: Convert to fraction form
    287,543,293.56/431,314,919.17 = 69,193,658.84/x
  3. Step 3: Cross multiply
    287,543,293.56x = 431,314,919.17 × 69,193,658.84
  4. Step 4: Simplify right side
    287,543,293.56x = 29,844,257,367,321,596
  5. Step 5: Solve for x
    x = 29,844,257,367,321,596/287,543,293.56
  6. Step 6: Final answer
    x = 103,790,483.16

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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.