Home / 664,270,675.20-996,406,012.80-255,340,166.40

Finding the Fourth Proportional to 664,270,675.20, 996,406,012.80 and 255,340,166.40

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Solution

The fourth proportional to 664,270,675.20, 996,406,012.80 and 255,340,166.40 is: 383,010,249.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,270,675.20 : 996,406,012.80 = 255,340,166.40 : x
  2. Step 2: Convert to fraction form
    664,270,675.20/996,406,012.80 = 255,340,166.40/x
  3. Step 3: Cross multiply
    664,270,675.20x = 996,406,012.80 × 255,340,166.40
  4. Step 4: Simplify right side
    664,270,675.20x = 254,422,477,110,312,512
  5. Step 5: Solve for x
    x = 254,422,477,110,312,512/664,270,675.20
  6. Step 6: Final answer
    x = 383,010,249.60

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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.