Home / 203,918,478.90-305,835,209.55-74,587,010.10

Finding the Fourth Proportional to 203,918,478.90, 305,835,209.55 and 74,587,010.10

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Solution

The fourth proportional to 203,918,478.90, 305,835,209.55 and 74,587,010.10 is: 111,864,966.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,918,478.90 : 305,835,209.55 = 74,587,010.10 : x
  2. Step 2: Convert to fraction form
    203,918,478.90/305,835,209.55 = 74,587,010.10/x
  3. Step 3: Cross multiply
    203,918,478.90x = 305,835,209.55 × 74,587,010.10
  4. Step 4: Simplify right side
    203,918,478.90x = 22,811,333,863,641,464
  5. Step 5: Solve for x
    x = 22,811,333,863,641,464/203,918,478.90
  6. Step 6: Final answer
    x = 111,864,966.76

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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.