Home / 442,172,450.70-662,909,201.69-220,730,140.90

Finding the Fourth Proportional to 442,172,450.70, 662,909,201.69 and 220,730,140.90

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Solution

The fourth proportional to 442,172,450.70, 662,909,201.69 and 220,730,140.90 is: 330,920,755.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,172,450.70 : 662,909,201.69 = 220,730,140.90 : x
  2. Step 2: Convert to fraction form
    442,172,450.70/662,909,201.69 = 220,730,140.90/x
  3. Step 3: Cross multiply
    442,172,450.70x = 662,909,201.69 × 220,730,140.90
  4. Step 4: Simplify right side
    442,172,450.70x = 146,324,041,488,522,016
  5. Step 5: Solve for x
    x = 146,324,041,488,522,016/442,172,450.70
  6. Step 6: Final answer
    x = 330,920,755.60

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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.