Home / 256,499,313.60-385,000,912.80-127,252,862.40

Finding the Fourth Proportional to 256,499,313.60, 385,000,912.80 and 127,252,862.40

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Solution

The fourth proportional to 256,499,313.60, 385,000,912.80 and 127,252,862.40 is: 191,004,285.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,499,313.60 : 385,000,912.80 = 127,252,862.40 : x
  2. Step 2: Convert to fraction form
    256,499,313.60/385,000,912.80 = 127,252,862.40/x
  3. Step 3: Cross multiply
    256,499,313.60x = 385,000,912.80 × 127,252,862.40
  4. Step 4: Simplify right side
    256,499,313.60x = 48,992,468,180,412,800
  5. Step 5: Solve for x
    x = 48,992,468,180,412,800/256,499,313.60
  6. Step 6: Final answer
    x = 191,004,285.71

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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.