Home / 103,479,731.80-155,193,121.86-30,679,489.24

Finding the Fourth Proportional to 103,479,731.80, 155,193,121.86 and 30,679,489.24

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Solution

The fourth proportional to 103,479,731.80, 155,193,121.86 and 30,679,489.24 is: 46,011,384.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,479,731.80 : 155,193,121.86 = 30,679,489.24 : x
  2. Step 2: Convert to fraction form
    103,479,731.80/155,193,121.86 = 30,679,489.24/x
  3. Step 3: Cross multiply
    103,479,731.80x = 155,193,121.86 × 30,679,489.24
  4. Step 4: Simplify right side
    103,479,731.80x = 4,761,245,712,225,879
  5. Step 5: Solve for x
    x = 4,761,245,712,225,879/103,479,731.80
  6. Step 6: Final answer
    x = 46,011,384.35

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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.