Home / 145,542,422.40-218,313,633.60-143,629,234.80

Finding the Fourth Proportional to 145,542,422.40, 218,313,633.60 and 143,629,234.80

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Solution

The fourth proportional to 145,542,422.40, 218,313,633.60 and 143,629,234.80 is: 215,443,852.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,542,422.40 : 218,313,633.60 = 143,629,234.80 : x
  2. Step 2: Convert to fraction form
    145,542,422.40/218,313,633.60 = 143,629,234.80/x
  3. Step 3: Cross multiply
    145,542,422.40x = 218,313,633.60 × 143,629,234.80
  4. Step 4: Simplify right side
    145,542,422.40x = 31,356,220,140,375,572
  5. Step 5: Solve for x
    x = 31,356,220,140,375,572/145,542,422.40
  6. Step 6: Final answer
    x = 215,443,852.20

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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.