Home / 209,956,520.80-314,934,781.20-148,734,517.60

Finding the Fourth Proportional to 209,956,520.80, 314,934,781.20 and 148,734,517.60

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Solution

The fourth proportional to 209,956,520.80, 314,934,781.20 and 148,734,517.60 is: 223,101,776.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,956,520.80 : 314,934,781.20 = 148,734,517.60 : x
  2. Step 2: Convert to fraction form
    209,956,520.80/314,934,781.20 = 148,734,517.60/x
  3. Step 3: Cross multiply
    209,956,520.80x = 314,934,781.20 × 148,734,517.60
  4. Step 4: Simplify right side
    209,956,520.80x = 46,841,672,757,243,544
  5. Step 5: Solve for x
    x = 46,841,672,757,243,544/209,956,520.80
  6. Step 6: Final answer
    x = 223,101,776.40

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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.