Home / 664,270,889.40-996,406,334.10-172,983,209.40

Finding the Fourth Proportional to 664,270,889.40, 996,406,334.10 and 172,983,209.40

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Solution

The fourth proportional to 664,270,889.40, 996,406,334.10 and 172,983,209.40 is: 259,474,814.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,270,889.40 : 996,406,334.10 = 172,983,209.40 : x
  2. Step 2: Convert to fraction form
    664,270,889.40/996,406,334.10 = 172,983,209.40/x
  3. Step 3: Cross multiply
    664,270,889.40x = 996,406,334.10 × 172,983,209.40
  4. Step 4: Simplify right side
    664,270,889.40x = 172,361,565,539,106,656
  5. Step 5: Solve for x
    x = 172,361,565,539,106,656/664,270,889.40
  6. Step 6: Final answer
    x = 259,474,814.10

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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.