Home / 72,686,760.06-100,307,729.22-39,647,007.48

Finding the Fourth Proportional to 72,686,760.06, 100,307,729.22 and 39,647,007.48

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Solution

The fourth proportional to 72,686,760.06, 100,307,729.22 and 39,647,007.48 is: 54,712,870.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,686,760.06 : 100,307,729.22 = 39,647,007.48 : x
  2. Step 2: Convert to fraction form
    72,686,760.06/100,307,729.22 = 39,647,007.48/x
  3. Step 3: Cross multiply
    72,686,760.06x = 100,307,729.22 × 39,647,007.48
  4. Step 4: Simplify right side
    72,686,760.06x = 3,976,901,290,687,154
  5. Step 5: Solve for x
    x = 3,976,901,290,687,154/72,686,760.06
  6. Step 6: Final answer
    x = 54,712,870.51

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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.