Home / 80,784,254.68-111,491,840.82-45,503,220.76

Finding the Fourth Proportional to 80,784,254.68, 111,491,840.82 and 45,503,220.76

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Solution

The fourth proportional to 80,784,254.68, 111,491,840.82 and 45,503,220.76 is: 62,799,834.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,784,254.68 : 111,491,840.82 = 45,503,220.76 : x
  2. Step 2: Convert to fraction form
    80,784,254.68/111,491,840.82 = 45,503,220.76/x
  3. Step 3: Cross multiply
    80,784,254.68x = 111,491,840.82 × 45,503,220.76
  4. Step 4: Simplify right side
    80,784,254.68x = 5,073,237,845,771,239
  5. Step 5: Solve for x
    x = 5,073,237,845,771,239/80,784,254.68
  6. Step 6: Final answer
    x = 62,799,834.77

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.