Home / 664,281,685.20-996,422,527.80-255,351,176.40

Finding the Fourth Proportional to 664,281,685.20, 996,422,527.80 and 255,351,176.40

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Solution

The fourth proportional to 664,281,685.20, 996,422,527.80 and 255,351,176.40 is: 383,026,764.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,281,685.20 : 996,422,527.80 = 255,351,176.40 : x
  2. Step 2: Convert to fraction form
    664,281,685.20/996,422,527.80 = 255,351,176.40/x
  3. Step 3: Cross multiply
    664,281,685.20x = 996,422,527.80 × 255,351,176.40
  4. Step 4: Simplify right side
    664,281,685.20x = 254,437,664,665,191,712
  5. Step 5: Solve for x
    x = 254,437,664,665,191,712/664,281,685.20
  6. Step 6: Final answer
    x = 383,026,764.60

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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.