Home / 28,906,000.76-39,892,803.44-15,855,781.95

Finding the Fourth Proportional to 28,906,000.76, 39,892,803.44 and 15,855,781.95

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Solution

The fourth proportional to 28,906,000.76, 39,892,803.44 and 15,855,781.95 is: 21,882,362.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,906,000.76 : 39,892,803.44 = 15,855,781.95 : x
  2. Step 2: Convert to fraction form
    28,906,000.76/39,892,803.44 = 15,855,781.95/x
  3. Step 3: Cross multiply
    28,906,000.76x = 39,892,803.44 × 15,855,781.95
  4. Step 4: Simplify right side
    28,906,000.76x = 632,531,592,745,657.75
  5. Step 5: Solve for x
    x = 632,531,592,745,657.75/28,906,000.76
  6. Step 6: Final answer
    x = 21,882,362.70

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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.