Home / 7,122,154.17-9,828,558.90-3,859,057.20

Finding the Fourth Proportional to 7,122,154.17, 9,828,558.90 and 3,859,057.20

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Solution

The fourth proportional to 7,122,154.17, 9,828,558.90 and 3,859,057.20 is: 5,325,491.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,122,154.17 : 9,828,558.90 = 3,859,057.20 : x
  2. Step 2: Convert to fraction form
    7,122,154.17/9,828,558.90 = 3,859,057.20/x
  3. Step 3: Cross multiply
    7,122,154.17x = 9,828,558.90 × 3,859,057.20
  4. Step 4: Simplify right side
    7,122,154.17x = 37,928,970,988,669.09
  5. Step 5: Solve for x
    x = 37,928,970,988,669.09/7,122,154.17
  6. Step 6: Final answer
    x = 5,325,491.43

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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.