Home / 82,101,959.12-113,225,854.92-70,495,881.68

Finding the Fourth Proportional to 82,101,959.12, 113,225,854.92 and 70,495,881.68

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Solution

The fourth proportional to 82,101,959.12, 113,225,854.92 and 70,495,881.68 is: 97,220,048.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,101,959.12 : 113,225,854.92 = 70,495,881.68 : x
  2. Step 2: Convert to fraction form
    82,101,959.12/113,225,854.92 = 70,495,881.68/x
  3. Step 3: Cross multiply
    82,101,959.12x = 113,225,854.92 × 70,495,881.68
  4. Step 4: Simplify right side
    82,101,959.12x = 7,981,956,471,557,167
  5. Step 5: Solve for x
    x = 7,981,956,471,557,167/82,101,959.12
  6. Step 6: Final answer
    x = 97,220,048.79

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.