Home / 3,988,897.56-5,504,693.40-2,178,061.56

Finding the Fourth Proportional to 3,988,897.56, 5,504,693.40 and 2,178,061.56

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Solution

The fourth proportional to 3,988,897.56, 5,504,693.40 and 2,178,061.56 is: 3,005,733.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,988,897.56 : 5,504,693.40 = 2,178,061.56 : x
  2. Step 2: Convert to fraction form
    3,988,897.56/5,504,693.40 = 2,178,061.56/x
  3. Step 3: Cross multiply
    3,988,897.56x = 5,504,693.40 × 2,178,061.56
  4. Step 4: Simplify right side
    3,988,897.56x = 11,989,561,094,125.71
  5. Step 5: Solve for x
    x = 11,989,561,094,125.71/3,988,897.56
  6. Step 6: Final answer
    x = 3,005,733.02

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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.