Home / 98,380,984.32-147,795,425.28-71,171,205.12

Finding the Fourth Proportional to 98,380,984.32, 147,795,425.28 and 71,171,205.12

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Solution

The fourth proportional to 98,380,984.32, 147,795,425.28 and 71,171,205.12 is: 106,918,817.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,380,984.32 : 147,795,425.28 = 71,171,205.12 : x
  2. Step 2: Convert to fraction form
    98,380,984.32/147,795,425.28 = 71,171,205.12/x
  3. Step 3: Cross multiply
    98,380,984.32x = 147,795,425.28 × 71,171,205.12
  4. Step 4: Simplify right side
    98,380,984.32x = 10,518,778,528,400,514
  5. Step 5: Solve for x
    x = 10,518,778,528,400,514/98,380,984.32
  6. Step 6: Final answer
    x = 106,918,817.71

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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.