Home / 5,220,881.48-7,839,009.80-2,919,882.78

Finding the Fourth Proportional to 5,220,881.48, 7,839,009.80 and 2,919,882.78

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Solution

The fourth proportional to 5,220,881.48, 7,839,009.80 and 2,919,882.78 is: 4,384,123.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,220,881.48 : 7,839,009.80 = 2,919,882.78 : x
  2. Step 2: Convert to fraction form
    5,220,881.48/7,839,009.80 = 2,919,882.78/x
  3. Step 3: Cross multiply
    5,220,881.48x = 7,839,009.80 × 2,919,882.78
  4. Step 4: Simplify right side
    5,220,881.48x = 22,888,989,727,271.24
  5. Step 5: Solve for x
    x = 22,888,989,727,271.24/5,220,881.48
  6. Step 6: Final answer
    x = 4,384,123.60

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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.