Home / 7,122,155.17-9,828,560.28-3,859,058.20

Finding the Fourth Proportional to 7,122,155.17, 9,828,560.28 and 3,859,058.20

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Solution

The fourth proportional to 7,122,155.17, 9,828,560.28 and 3,859,058.20 is: 5,325,492.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,122,155.17 : 9,828,560.28 = 3,859,058.20 : x
  2. Step 2: Convert to fraction form
    7,122,155.17/9,828,560.28 = 3,859,058.20/x
  3. Step 3: Cross multiply
    7,122,155.17x = 9,828,560.28 × 3,859,058.20
  4. Step 4: Simplify right side
    7,122,155.17x = 37,928,986,142,728.30
  5. Step 5: Solve for x
    x = 37,928,986,142,728.30/7,122,155.17
  6. Step 6: Final answer
    x = 5,325,492.81

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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.