Home / 7,113,111.19-9,815,048.62-3,972,987.92

Finding the Fourth Proportional to 7,113,111.19, 9,815,048.62 and 3,972,987.92

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Solution

The fourth proportional to 7,113,111.19, 9,815,048.62 and 3,972,987.92 is: 5,482,139.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,113,111.19 : 9,815,048.62 = 3,972,987.92 : x
  2. Step 2: Convert to fraction form
    7,113,111.19/9,815,048.62 = 3,972,987.92/x
  3. Step 3: Cross multiply
    7,113,111.19x = 9,815,048.62 × 3,972,987.92
  4. Step 4: Simplify right side
    7,113,111.19x = 38,995,069,601,472.66
  5. Step 5: Solve for x
    x = 38,995,069,601,472.66/7,113,111.19
  6. Step 6: Final answer
    x = 5,482,139.75

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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.