Home / 3,921,351.12-5,411,356.56-2,178,975.51

Finding the Fourth Proportional to 3,921,351.12, 5,411,356.56 and 2,178,975.51

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Solution

The fourth proportional to 3,921,351.12, 5,411,356.56 and 2,178,975.51 is: 3,006,926.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,921,351.12 : 5,411,356.56 = 2,178,975.51 : x
  2. Step 2: Convert to fraction form
    3,921,351.12/5,411,356.56 = 2,178,975.51/x
  3. Step 3: Cross multiply
    3,921,351.12x = 5,411,356.56 × 2,178,975.51
  4. Step 4: Simplify right side
    3,921,351.12x = 11,791,213,420,117.84
  5. Step 5: Solve for x
    x = 11,791,213,420,117.84/3,921,351.12
  6. Step 6: Final answer
    x = 3,006,926.20

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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.