Home / 10,381,142.70-15,567,048.45-3,989,270.70

Finding the Fourth Proportional to 10,381,142.70, 15,567,048.45 and 3,989,270.70

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Solution

The fourth proportional to 10,381,142.70, 15,567,048.45 and 3,989,270.70 is: 5,982,113.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,381,142.70 : 15,567,048.45 = 3,989,270.70 : x
  2. Step 2: Convert to fraction form
    10,381,142.70/15,567,048.45 = 3,989,270.70/x
  3. Step 3: Cross multiply
    10,381,142.70x = 15,567,048.45 × 3,989,270.70
  4. Step 4: Simplify right side
    10,381,142.70x = 62,101,170,267,065.41
  5. Step 5: Solve for x
    x = 62,101,170,267,065.41/10,381,142.70
  6. Step 6: Final answer
    x = 5,982,113.15

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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.