Home / 28,156,190-38,855,542.20-15,279,134

Finding the Fourth Proportional to 28,156,190, 38,855,542.20 and 15,279,134

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Solution

The fourth proportional to 28,156,190, 38,855,542.20 and 15,279,134 is: 21,085,204.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,156,190 : 38,855,542.20 = 15,279,134 : x
  2. Step 2: Convert to fraction form
    28,156,190/38,855,542.20 = 15,279,134/x
  3. Step 3: Cross multiply
    28,156,190x = 38,855,542.20 × 15,279,134
  4. Step 4: Simplify right side
    28,156,190x = 593,679,035,916,454.88
  5. Step 5: Solve for x
    x = 593,679,035,916,454.88/28,156,190
  6. Step 6: Final answer
    x = 21,085,204.92

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1.5x scale

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.