Home / 6,413,921.28-9,621,765.12-2,155,307.52

Finding the Fourth Proportional to 6,413,921.28, 9,621,765.12 and 2,155,307.52

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Solution

The fourth proportional to 6,413,921.28, 9,621,765.12 and 2,155,307.52 is: 3,233,258.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,413,921.28 : 9,621,765.12 = 2,155,307.52 : x
  2. Step 2: Convert to fraction form
    6,413,921.28/9,621,765.12 = 2,155,307.52/x
  3. Step 3: Cross multiply
    6,413,921.28x = 9,621,765.12 × 2,155,307.52
  4. Step 4: Simplify right side
    6,413,921.28x = 20,737,862,718,809.70
  5. Step 5: Solve for x
    x = 20,737,862,718,809.70/6,413,921.28
  6. Step 6: Final answer
    x = 3,233,258.07

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.