Home / 256,353,685.20-384,530,527.80-187,825,352.40

Finding the Fourth Proportional to 256,353,685.20, 384,530,527.80 and 187,825,352.40

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Solution

The fourth proportional to 256,353,685.20, 384,530,527.80 and 187,825,352.40 is: 281,738,028.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,353,685.20 : 384,530,527.80 = 187,825,352.40 : x
  2. Step 2: Convert to fraction form
    256,353,685.20/384,530,527.80 = 187,825,352.40/x
  3. Step 3: Cross multiply
    256,353,685.20x = 384,530,527.80 × 187,825,352.40
  4. Step 4: Simplify right side
    256,353,685.20x = 72,224,581,892,593,008
  5. Step 5: Solve for x
    x = 72,224,581,892,593,008/256,353,685.20
  6. Step 6: Final answer
    x = 281,738,028.60

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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.