Home / 145,837,928.20-218,721,900.30-84,293,998.60

Finding the Fourth Proportional to 145,837,928.20, 218,721,900.30 and 84,293,998.60

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Solution

The fourth proportional to 145,837,928.20, 218,721,900.30 and 84,293,998.60 is: 126,420,772.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,837,928.20 : 218,721,900.30 = 84,293,998.60 : x
  2. Step 2: Convert to fraction form
    145,837,928.20/218,721,900.30 = 84,293,998.60/x
  3. Step 3: Cross multiply
    145,837,928.20x = 218,721,900.30 × 84,293,998.60
  4. Step 4: Simplify right side
    145,837,928.20x = 18,436,943,557,677,540
  5. Step 5: Solve for x
    x = 18,436,943,557,677,540/145,837,928.20
  6. Step 6: Final answer
    x = 126,420,772.60

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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.