Home / 78,727,277.82-108,643,689.99-43,919,968.38

Finding the Fourth Proportional to 78,727,277.82, 108,643,689.99 and 43,919,968.38

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Solution

The fourth proportional to 78,727,277.82, 108,643,689.99 and 43,919,968.38 is: 60,609,582.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,727,277.82 : 108,643,689.99 = 43,919,968.38 : x
  2. Step 2: Convert to fraction form
    78,727,277.82/108,643,689.99 = 43,919,968.38/x
  3. Step 3: Cross multiply
    78,727,277.82x = 108,643,689.99 × 43,919,968.38
  4. Step 4: Simplify right side
    78,727,277.82x = 4,771,627,429,047,323
  5. Step 5: Solve for x
    x = 4,771,627,429,047,323/78,727,277.82
  6. Step 6: Final answer
    x = 60,609,582.36

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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.