Home / 143,145,629.70-214,781,430.15-66,429,168.90

Finding the Fourth Proportional to 143,145,629.70, 214,781,430.15 and 66,429,168.90

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Solution

The fourth proportional to 143,145,629.70, 214,781,430.15 and 66,429,168.90 is: 99,672,982.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,145,629.70 : 214,781,430.15 = 66,429,168.90 : x
  2. Step 2: Convert to fraction form
    143,145,629.70/214,781,430.15 = 66,429,168.90/x
  3. Step 3: Cross multiply
    143,145,629.70x = 214,781,430.15 × 66,429,168.90
  4. Step 4: Simplify right side
    143,145,629.70x = 14,267,751,900,017,902
  5. Step 5: Solve for x
    x = 14,267,751,900,017,902/143,145,629.70
  6. Step 6: Final answer
    x = 99,672,982.89

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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.