Home / 83,458,875.17-115,040,221.29-65,788,984.98

Finding the Fourth Proportional to 83,458,875.17, 115,040,221.29 and 65,788,984.98

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Solution

The fourth proportional to 83,458,875.17, 115,040,221.29 and 65,788,984.98 is: 90,683,937.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,458,875.17 : 115,040,221.29 = 65,788,984.98 : x
  2. Step 2: Convert to fraction form
    83,458,875.17/115,040,221.29 = 65,788,984.98/x
  3. Step 3: Cross multiply
    83,458,875.17x = 115,040,221.29 × 65,788,984.98
  4. Step 4: Simplify right side
    83,458,875.17x = 7,568,379,390,543,686
  5. Step 5: Solve for x
    x = 7,568,379,390,543,686/83,458,875.17
  6. Step 6: Final answer
    x = 90,683,937.16

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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.