Home / 7,112,816.12-9,815,601.38-3,849,553.74

Finding the Fourth Proportional to 7,112,816.12, 9,815,601.38 and 3,849,553.74

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Solution

The fourth proportional to 7,112,816.12, 9,815,601.38 and 3,849,553.74 is: 5,312,338.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,112,816.12 : 9,815,601.38 = 3,849,553.74 : x
  2. Step 2: Convert to fraction form
    7,112,816.12/9,815,601.38 = 3,849,553.74/x
  3. Step 3: Cross multiply
    7,112,816.12x = 9,815,601.38 × 3,849,553.74
  4. Step 4: Simplify right side
    7,112,816.12x = 37,785,685,002,728.16
  5. Step 5: Solve for x
    x = 37,785,685,002,728.16/7,112,816.12
  6. Step 6: Final answer
    x = 5,312,338.23

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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.