Home / 109,156,964.70-163,735,447.05-100,228,755.90

Finding the Fourth Proportional to 109,156,964.70, 163,735,447.05 and 100,228,755.90

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Solution

The fourth proportional to 109,156,964.70, 163,735,447.05 and 100,228,755.90 is: 150,343,133.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,156,964.70 : 163,735,447.05 = 100,228,755.90 : x
  2. Step 2: Convert to fraction form
    109,156,964.70/163,735,447.05 = 100,228,755.90/x
  3. Step 3: Cross multiply
    109,156,964.70x = 163,735,447.05 × 100,228,755.90
  4. Step 4: Simplify right side
    109,156,964.70x = 16,411,000,154,551,828
  5. Step 5: Solve for x
    x = 16,411,000,154,551,828/109,156,964.70
  6. Step 6: Final answer
    x = 150,343,133.85

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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.