Home / 12,130,629.28-18,202,241.52-4,947,433.12

Finding the Fourth Proportional to 12,130,629.28, 18,202,241.52 and 4,947,433.12

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Solution

The fourth proportional to 12,130,629.28, 18,202,241.52 and 4,947,433.12 is: 7,423,718.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,130,629.28 : 18,202,241.52 = 4,947,433.12 : x
  2. Step 2: Convert to fraction form
    12,130,629.28/18,202,241.52 = 4,947,433.12/x
  3. Step 3: Cross multiply
    12,130,629.28x = 18,202,241.52 × 4,947,433.12
  4. Step 4: Simplify right side
    12,130,629.28x = 90,054,372,554,287.14
  5. Step 5: Solve for x
    x = 90,054,372,554,287.14/12,130,629.28
  6. Step 6: Final answer
    x = 7,423,718.13

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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.