Home / 386,113,369.32-578,394,592.38-178,560,861.48

Finding the Fourth Proportional to 386,113,369.32, 578,394,592.38 and 178,560,861.48

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Solution

The fourth proportional to 386,113,369.32, 578,394,592.38 and 178,560,861.48 is: 267,482,674.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,113,369.32 : 578,394,592.38 = 178,560,861.48 : x
  2. Step 2: Convert to fraction form
    386,113,369.32/578,394,592.38 = 178,560,861.48/x
  3. Step 3: Cross multiply
    386,113,369.32x = 578,394,592.38 × 178,560,861.48
  4. Step 4: Simplify right side
    386,113,369.32x = 103,278,636,690,746,240
  5. Step 5: Solve for x
    x = 103,278,636,690,746,240/386,113,369.32
  6. Step 6: Final answer
    x = 267,482,674.51

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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.