Home / 256,353,677.70-384,530,516.55-187,825,344.90

Finding the Fourth Proportional to 256,353,677.70, 384,530,516.55 and 187,825,344.90

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Solution

The fourth proportional to 256,353,677.70, 384,530,516.55 and 187,825,344.90 is: 281,738,017.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,353,677.70 : 384,530,516.55 = 187,825,344.90 : x
  2. Step 2: Convert to fraction form
    256,353,677.70/384,530,516.55 = 187,825,344.90/x
  3. Step 3: Cross multiply
    256,353,677.70x = 384,530,516.55 × 187,825,344.90
  4. Step 4: Simplify right side
    256,353,677.70x = 72,224,576,895,578,912
  5. Step 5: Solve for x
    x = 72,224,576,895,578,912/256,353,677.70
  6. Step 6: Final answer
    x = 281,738,017.35

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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.