Home / 206,856,956.60-310,285,434.90-91,719,279.80

Finding the Fourth Proportional to 206,856,956.60, 310,285,434.90 and 91,719,279.80

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Solution

The fourth proportional to 206,856,956.60, 310,285,434.90 and 91,719,279.80 is: 137,578,919.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,856,956.60 : 310,285,434.90 = 91,719,279.80 : x
  2. Step 2: Convert to fraction form
    206,856,956.60/310,285,434.90 = 91,719,279.80/x
  3. Step 3: Cross multiply
    206,856,956.60x = 310,285,434.90 × 91,719,279.80
  4. Step 4: Simplify right side
    206,856,956.60x = 28,459,156,621,457,780
  5. Step 5: Solve for x
    x = 28,459,156,621,457,780/206,856,956.60
  6. Step 6: Final answer
    x = 137,578,919.70

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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.