Home / 7,239,988.22-9,991,356.21-3,976,871.28

Finding the Fourth Proportional to 7,239,988.22, 9,991,356.21 and 3,976,871.28

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Solution

The fourth proportional to 7,239,988.22, 9,991,356.21 and 3,976,871.28 is: 5,488,177.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,239,988.22 : 9,991,356.21 = 3,976,871.28 : x
  2. Step 2: Convert to fraction form
    7,239,988.22/9,991,356.21 = 3,976,871.28/x
  3. Step 3: Cross multiply
    7,239,988.22x = 9,991,356.21 × 3,976,871.28
  4. Step 4: Simplify right side
    7,239,988.22x = 39,734,337,559,798.65
  5. Step 5: Solve for x
    x = 39,734,337,559,798.65/7,239,988.22
  6. Step 6: Final answer
    x = 5,488,177.10

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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.