Home / 15,172,711.68-20,938,140.72-8,646,729.60

Finding the Fourth Proportional to 15,172,711.68, 20,938,140.72 and 8,646,729.60

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Solution

The fourth proportional to 15,172,711.68, 20,938,140.72 and 8,646,729.60 is: 11,932,372.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,172,711.68 : 20,938,140.72 = 8,646,729.60 : x
  2. Step 2: Convert to fraction form
    15,172,711.68/20,938,140.72 = 8,646,729.60/x
  3. Step 3: Cross multiply
    15,172,711.68x = 20,938,140.72 × 8,646,729.60
  4. Step 4: Simplify right side
    15,172,711.68x = 181,046,441,132,589.28
  5. Step 5: Solve for x
    x = 181,046,441,132,589.28/15,172,711.68
  6. Step 6: Final answer
    x = 11,932,372.07

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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.