Home / 132,077,709.60-198,116,564.40-82,972,561.20

Finding the Fourth Proportional to 132,077,709.60, 198,116,564.40 and 82,972,561.20

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Solution

The fourth proportional to 132,077,709.60, 198,116,564.40 and 82,972,561.20 is: 124,458,841.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,077,709.60 : 198,116,564.40 = 82,972,561.20 : x
  2. Step 2: Convert to fraction form
    132,077,709.60/198,116,564.40 = 82,972,561.20/x
  3. Step 3: Cross multiply
    132,077,709.60x = 198,116,564.40 × 82,972,561.20
  4. Step 4: Simplify right side
    132,077,709.60x = 16,438,238,764,412,742
  5. Step 5: Solve for x
    x = 16,438,238,764,412,742/132,077,709.60
  6. Step 6: Final answer
    x = 124,458,841.80

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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.