Home / 10,259,320.80-15,388,981.20-3,869,781.60

Finding the Fourth Proportional to 10,259,320.80, 15,388,981.20 and 3,869,781.60

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Solution

The fourth proportional to 10,259,320.80, 15,388,981.20 and 3,869,781.60 is: 5,804,672.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,259,320.80 : 15,388,981.20 = 3,869,781.60 : x
  2. Step 2: Convert to fraction form
    10,259,320.80/15,388,981.20 = 3,869,781.60/x
  3. Step 3: Cross multiply
    10,259,320.80x = 15,388,981.20 × 3,869,781.60
  4. Step 4: Simplify right side
    10,259,320.80x = 59,551,996,290,505.92
  5. Step 5: Solve for x
    x = 59,551,996,290,505.92/10,259,320.80
  6. Step 6: Final answer
    x = 5,804,672.40

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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.