Home / 10,486,276.80-15,729,933.60-5,447,428.80

Finding the Fourth Proportional to 10,486,276.80, 15,729,933.60 and 5,447,428.80

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Solution

The fourth proportional to 10,486,276.80, 15,729,933.60 and 5,447,428.80 is: 8,171,412.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,486,276.80 : 15,729,933.60 = 5,447,428.80 : x
  2. Step 2: Convert to fraction form
    10,486,276.80/15,729,933.60 = 5,447,428.80/x
  3. Step 3: Cross multiply
    10,486,276.80x = 15,729,933.60 × 5,447,428.80
  4. Step 4: Simplify right side
    10,486,276.80x = 85,687,693,314,727.67
  5. Step 5: Solve for x
    x = 85,687,693,314,727.67/10,486,276.80
  6. Step 6: Final answer
    x = 8,171,412.50

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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.