Home / 98,380,985.32-147,795,426.78-71,171,206.12

Finding the Fourth Proportional to 98,380,985.32, 147,795,426.78 and 71,171,206.12

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Solution

The fourth proportional to 98,380,985.32, 147,795,426.78 and 71,171,206.12 is: 106,918,819.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,380,985.32 : 147,795,426.78 = 71,171,206.12 : x
  2. Step 2: Convert to fraction form
    98,380,985.32/147,795,426.78 = 71,171,206.12/x
  3. Step 3: Cross multiply
    98,380,985.32x = 147,795,426.78 × 71,171,206.12
  4. Step 4: Simplify right side
    98,380,985.32x = 10,518,778,782,952,748
  5. Step 5: Solve for x
    x = 10,518,778,782,952,748/98,380,985.32
  6. Step 6: Final answer
    x = 106,918,819.21

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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.