Home / 80,736,063.68-111,561,508.60-57,490,834.32

Finding the Fourth Proportional to 80,736,063.68, 111,561,508.60 and 57,490,834.32

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Solution

The fourth proportional to 80,736,063.68, 111,561,508.60 and 57,490,834.32 is: 79,441,130.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,736,063.68 : 111,561,508.60 = 57,490,834.32 : x
  2. Step 2: Convert to fraction form
    80,736,063.68/111,561,508.60 = 57,490,834.32/x
  3. Step 3: Cross multiply
    80,736,063.68x = 111,561,508.60 × 57,490,834.32
  4. Step 4: Simplify right side
    80,736,063.68x = 6,413,764,207,411,855
  5. Step 5: Solve for x
    x = 6,413,764,207,411,855/80,736,063.68
  6. Step 6: Final answer
    x = 79,441,130.95

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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.