Home / 148,320,748.20-204,663,819.42-81,322,075.04

Finding the Fourth Proportional to 148,320,748.20, 204,663,819.42 and 81,322,075.04

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Solution

The fourth proportional to 148,320,748.20, 204,663,819.42 and 81,322,075.04 is: 112,214,148.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,320,748.20 : 204,663,819.42 = 81,322,075.04 : x
  2. Step 2: Convert to fraction form
    148,320,748.20/204,663,819.42 = 81,322,075.04/x
  3. Step 3: Cross multiply
    148,320,748.20x = 204,663,819.42 × 81,322,075.04
  4. Step 4: Simplify right side
    148,320,748.20x = 16,643,686,479,822,928
  5. Step 5: Solve for x
    x = 16,643,686,479,822,928/148,320,748.20
  6. Step 6: Final answer
    x = 112,214,148.61

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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.