Home / 18,663,362.40-27,995,040.72-4,479,938.40

Finding the Fourth Proportional to 18,663,362.40, 27,995,040.72 and 4,479,938.40

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Solution

The fourth proportional to 18,663,362.40, 27,995,040.72 and 4,479,938.40 is: 6,719,906.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,663,362.40 : 27,995,040.72 = 4,479,938.40 : x
  2. Step 2: Convert to fraction form
    18,663,362.40/27,995,040.72 = 4,479,938.40/x
  3. Step 3: Cross multiply
    18,663,362.40x = 27,995,040.72 × 4,479,938.40
  4. Step 4: Simplify right side
    18,663,362.40x = 125,416,057,931,091.66
  5. Step 5: Solve for x
    x = 125,416,057,931,091.66/18,663,362.40
  6. Step 6: Final answer
    x = 6,719,906.91

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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.