Home / 28,771,849.80-43,086,915.90-13,608,066.60

Finding the Fourth Proportional to 28,771,849.80, 43,086,915.90 and 13,608,066.60

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Solution

The fourth proportional to 28,771,849.80, 43,086,915.90 and 13,608,066.60 is: 20,378,586.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,771,849.80 : 43,086,915.90 = 13,608,066.60 : x
  2. Step 2: Convert to fraction form
    28,771,849.80/43,086,915.90 = 13,608,066.60/x
  3. Step 3: Cross multiply
    28,771,849.80x = 43,086,915.90 × 13,608,066.60
  4. Step 4: Simplify right side
    28,771,849.80x = 586,329,621,155,798.88
  5. Step 5: Solve for x
    x = 586,329,621,155,798.88/28,771,849.80
  6. Step 6: Final answer
    x = 20,378,586.20

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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.