Home / 664,288,239.20-996,432,358.80-255,357,730.40

Finding the Fourth Proportional to 664,288,239.20, 996,432,358.80 and 255,357,730.40

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Solution

The fourth proportional to 664,288,239.20, 996,432,358.80 and 255,357,730.40 is: 383,036,595.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,288,239.20 : 996,432,358.80 = 255,357,730.40 : x
  2. Step 2: Convert to fraction form
    664,288,239.20/996,432,358.80 = 255,357,730.40/x
  3. Step 3: Cross multiply
    664,288,239.20x = 996,432,358.80 × 255,357,730.40
  4. Step 4: Simplify right side
    664,288,239.20x = 254,446,705,640,286,464
  5. Step 5: Solve for x
    x = 254,446,705,640,286,464/664,288,239.20
  6. Step 6: Final answer
    x = 383,036,595.60

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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.