Home / 296,988,716.30-445,431,701.55-78,642,195.44

Finding the Fourth Proportional to 296,988,716.30, 445,431,701.55 and 78,642,195.44

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Solution

The fourth proportional to 296,988,716.30, 445,431,701.55 and 78,642,195.44 is: 117,949,689.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    296,988,716.30 : 445,431,701.55 = 78,642,195.44 : x
  2. Step 2: Convert to fraction form
    296,988,716.30/445,431,701.55 = 78,642,195.44/x
  3. Step 3: Cross multiply
    296,988,716.30x = 445,431,701.55 × 78,642,195.44
  4. Step 4: Simplify right side
    296,988,716.30x = 35,029,726,928,466,852
  5. Step 5: Solve for x
    x = 35,029,726,928,466,852/296,988,716.30
  6. Step 6: Final answer
    x = 117,949,689.69

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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.