Home / 28,981,257.66-39,994,222.92-15,929,854.02

Finding the Fourth Proportional to 28,981,257.66, 39,994,222.92 and 15,929,854.02

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Solution

The fourth proportional to 28,981,257.66, 39,994,222.92 and 15,929,854.02 is: 21,983,246.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,981,257.66 : 39,994,222.92 = 15,929,854.02 : x
  2. Step 2: Convert to fraction form
    28,981,257.66/39,994,222.92 = 15,929,854.02/x
  3. Step 3: Cross multiply
    28,981,257.66x = 39,994,222.92 × 15,929,854.02
  4. Step 4: Simplify right side
    28,981,257.66x = 637,102,132,758,938.12
  5. Step 5: Solve for x
    x = 637,102,132,758,938.12/28,981,257.66
  6. Step 6: Final answer
    x = 21,983,246.56

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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.