Home / 138,040,686,528.52-190,494,284,862.18-77,073,992,833.72

Finding the Fourth Proportional to 138,040,686,528.52, 190,494,284,862.18 and 77,073,992,833.72

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Solution

The fourth proportional to 138,040,686,528.52, 190,494,284,862.18 and 77,073,992,833.72 is: 106,361,070,171.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,040,686,528.52 : 190,494,284,862.18 = 77,073,992,833.72 : x
  2. Step 2: Convert to fraction form
    138,040,686,528.52/190,494,284,862.18 = 77,073,992,833.72/x
  3. Step 3: Cross multiply
    138,040,686,528.52x = 190,494,284,862.18 × 77,073,992,833.72
  4. Step 4: Simplify right side
    138,040,686,528.52x = 14,682,155,146,332,277,309,440
  5. Step 5: Solve for x
    x = 14,682,155,146,332,277,309,440/138,040,686,528.52
  6. Step 6: Final answer
    x = 106,361,070,171.14

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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.