Home / 145,819,287.20-218,728,930.80-143,551,805.60

Finding the Fourth Proportional to 145,819,287.20, 218,728,930.80 and 143,551,805.60

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Solution

The fourth proportional to 145,819,287.20, 218,728,930.80 and 143,551,805.60 is: 215,327,708.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,819,287.20 : 218,728,930.80 = 143,551,805.60 : x
  2. Step 2: Convert to fraction form
    145,819,287.20/218,728,930.80 = 143,551,805.60/x
  3. Step 3: Cross multiply
    145,819,287.20x = 218,728,930.80 × 143,551,805.60
  4. Step 4: Simplify right side
    145,819,287.20x = 31,398,932,953,297,452
  5. Step 5: Solve for x
    x = 31,398,932,953,297,452/145,819,287.20
  6. Step 6: Final answer
    x = 215,327,708.40

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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.