Home / 209,664,412.80-314,496,619.20-172,676,119.20

Finding the Fourth Proportional to 209,664,412.80, 314,496,619.20 and 172,676,119.20

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Solution

The fourth proportional to 209,664,412.80, 314,496,619.20 and 172,676,119.20 is: 259,014,178.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,664,412.80 : 314,496,619.20 = 172,676,119.20 : x
  2. Step 2: Convert to fraction form
    209,664,412.80/314,496,619.20 = 172,676,119.20/x
  3. Step 3: Cross multiply
    209,664,412.80x = 314,496,619.20 × 172,676,119.20
  4. Step 4: Simplify right side
    209,664,412.80x = 54,306,055,704,976,200
  5. Step 5: Solve for x
    x = 54,306,055,704,976,200/209,664,412.80
  6. Step 6: Final answer
    x = 259,014,178.80

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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.