Home / 28,209,491.10-42,328,233.45-11,170,719.90

Finding the Fourth Proportional to 28,209,491.10, 42,328,233.45 and 11,170,719.90

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Solution

The fourth proportional to 28,209,491.10, 42,328,233.45 and 11,170,719.90 is: 16,761,622.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,209,491.10 : 42,328,233.45 = 11,170,719.90 : x
  2. Step 2: Convert to fraction form
    28,209,491.10/42,328,233.45 = 11,170,719.90/x
  3. Step 3: Cross multiply
    28,209,491.10x = 42,328,233.45 × 11,170,719.90
  4. Step 4: Simplify right side
    28,209,491.10x = 472,836,839,731,760.69
  5. Step 5: Solve for x
    x = 472,836,839,731,760.69/28,209,491.10
  6. Step 6: Final answer
    x = 16,761,622.46

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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.