Home / 83,458,873.67-115,040,219.22-65,788,983.47

Finding the Fourth Proportional to 83,458,873.67, 115,040,219.22 and 65,788,983.47

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Solution

The fourth proportional to 83,458,873.67, 115,040,219.22 and 65,788,983.47 is: 90,683,935.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,458,873.67 : 115,040,219.22 = 65,788,983.47 : x
  2. Step 2: Convert to fraction form
    83,458,873.67/115,040,219.22 = 65,788,983.47/x
  3. Step 3: Cross multiply
    83,458,873.67x = 115,040,219.22 × 65,788,983.47
  4. Step 4: Simplify right side
    83,458,873.67x = 7,568,379,080,937,356
  5. Step 5: Solve for x
    x = 7,568,379,080,937,356/83,458,873.67
  6. Step 6: Final answer
    x = 90,683,935.08

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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.