Home / 645,139,233.60-967,834,821.60-256,895,995.20

Finding the Fourth Proportional to 645,139,233.60, 967,834,821.60 and 256,895,995.20

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Solution

The fourth proportional to 645,139,233.60, 967,834,821.60 and 256,895,995.20 is: 385,394,154.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,139,233.60 : 967,834,821.60 = 256,895,995.20 : x
  2. Step 2: Convert to fraction form
    645,139,233.60/967,834,821.60 = 256,895,995.20/x
  3. Step 3: Cross multiply
    645,139,233.60x = 967,834,821.60 × 256,895,995.20
  4. Step 4: Simplify right side
    645,139,233.60x = 248,632,889,684,146,464
  5. Step 5: Solve for x
    x = 248,632,889,684,146,464/645,139,233.60
  6. Step 6: Final answer
    x = 385,394,154.83

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Similar ratio
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1.5x scale

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.