Home / 78,900,826.28-108,873,708.95-43,613,864.38

Finding the Fourth Proportional to 78,900,826.28, 108,873,708.95 and 43,613,864.38

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Solution

The fourth proportional to 78,900,826.28, 108,873,708.95 and 43,613,864.38 is: 60,181,919.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,900,826.28 : 108,873,708.95 = 43,613,864.38 : x
  2. Step 2: Convert to fraction form
    78,900,826.28/108,873,708.95 = 43,613,864.38/x
  3. Step 3: Cross multiply
    78,900,826.28x = 108,873,708.95 × 43,613,864.38
  4. Step 4: Simplify right side
    78,900,826.28x = 4,748,403,175,930,454
  5. Step 5: Solve for x
    x = 4,748,403,175,930,454/78,900,826.28
  6. Step 6: Final answer
    x = 60,181,919.50

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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.