Home / 131,109,022.20-196,506,069.30-54,392,561.40

Finding the Fourth Proportional to 131,109,022.20, 196,506,069.30 and 54,392,561.40

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Solution

The fourth proportional to 131,109,022.20, 196,506,069.30 and 54,392,561.40 is: 81,523,515.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,109,022.20 : 196,506,069.30 = 54,392,561.40 : x
  2. Step 2: Convert to fraction form
    131,109,022.20/196,506,069.30 = 54,392,561.40/x
  3. Step 3: Cross multiply
    131,109,022.20x = 196,506,069.30 × 54,392,561.40
  4. Step 4: Simplify right side
    131,109,022.20x = 10,688,468,439,872,906
  5. Step 5: Solve for x
    x = 10,688,468,439,872,906/131,109,022.20
  6. Step 6: Final answer
    x = 81,523,515.78

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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.