Home / 131,004,054.70-196,506,082.05-90,189,385.90

Finding the Fourth Proportional to 131,004,054.70, 196,506,082.05 and 90,189,385.90

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Solution

The fourth proportional to 131,004,054.70, 196,506,082.05 and 90,189,385.90 is: 135,284,078.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,004,054.70 : 196,506,082.05 = 90,189,385.90 : x
  2. Step 2: Convert to fraction form
    131,004,054.70/196,506,082.05 = 90,189,385.90/x
  3. Step 3: Cross multiply
    131,004,054.70x = 196,506,082.05 × 90,189,385.90
  4. Step 4: Simplify right side
    131,004,054.70x = 17,722,762,865,704,516
  5. Step 5: Solve for x
    x = 17,722,762,865,704,516/131,004,054.70
  6. Step 6: Final answer
    x = 135,284,078.85

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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.