Home / 207,683,728.69-311,526,120.87-84,862,046.52

Finding the Fourth Proportional to 207,683,728.69, 311,526,120.87 and 84,862,046.52

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Solution

The fourth proportional to 207,683,728.69, 311,526,120.87 and 84,862,046.52 is: 127,293,285.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,683,728.69 : 311,526,120.87 = 84,862,046.52 : x
  2. Step 2: Convert to fraction form
    207,683,728.69/311,526,120.87 = 84,862,046.52/x
  3. Step 3: Cross multiply
    207,683,728.69x = 311,526,120.87 × 84,862,046.52
  4. Step 4: Simplify right side
    207,683,728.69x = 26,436,744,161,465,080
  5. Step 5: Solve for x
    x = 26,436,744,161,465,080/207,683,728.69
  6. Step 6: Final answer
    x = 127,293,285.46

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.