Home / 28,072,648.20-42,108,972.30-9,879,651.30

Finding the Fourth Proportional to 28,072,648.20, 42,108,972.30 and 9,879,651.30

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Solution

The fourth proportional to 28,072,648.20, 42,108,972.30 and 9,879,651.30 is: 14,819,476.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,072,648.20 : 42,108,972.30 = 9,879,651.30 : x
  2. Step 2: Convert to fraction form
    28,072,648.20/42,108,972.30 = 9,879,651.30/x
  3. Step 3: Cross multiply
    28,072,648.20x = 42,108,972.30 × 9,879,651.30
  4. Step 4: Simplify right side
    28,072,648.20x = 416,021,962,925,359
  5. Step 5: Solve for x
    x = 416,021,962,925,359/28,072,648.20
  6. Step 6: Final answer
    x = 14,819,476.95

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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.