Home / 116,855,785-161,265,731.52-64,643,920.48

Finding the Fourth Proportional to 116,855,785, 161,265,731.52 and 64,643,920.48

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Solution

The fourth proportional to 116,855,785, 161,265,731.52 and 64,643,920.48 is: 89,211,236.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,855,785 : 161,265,731.52 = 64,643,920.48 : x
  2. Step 2: Convert to fraction form
    116,855,785/161,265,731.52 = 64,643,920.48/x
  3. Step 3: Cross multiply
    116,855,785x = 161,265,731.52 × 64,643,920.48
  4. Step 4: Simplify right side
    116,855,785x = 10,424,849,124,527,910
  5. Step 5: Solve for x
    x = 10,424,849,124,527,910/116,855,785
  6. Step 6: Final answer
    x = 89,211,236.95

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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.