Home / 28,921,359.72-39,911,552.21-15,690,535.95

Finding the Fourth Proportional to 28,921,359.72, 39,911,552.21 and 15,690,535.95

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Solution

The fourth proportional to 28,921,359.72, 39,911,552.21 and 15,690,535.95 is: 21,652,980.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,921,359.72 : 39,911,552.21 = 15,690,535.95 : x
  2. Step 2: Convert to fraction form
    28,921,359.72/39,911,552.21 = 15,690,535.95/x
  3. Step 3: Cross multiply
    28,921,359.72x = 39,911,552.21 × 15,690,535.95
  4. Step 4: Simplify right side
    28,921,359.72x = 626,233,644,771,306.88
  5. Step 5: Solve for x
    x = 626,233,644,771,306.88/28,921,359.72
  6. Step 6: Final answer
    x = 21,652,980.74

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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.