Home / 15,047,969.33-20,766,319.65-8,172,500.60

Finding the Fourth Proportional to 15,047,969.33, 20,766,319.65 and 8,172,500.60

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Solution

The fourth proportional to 15,047,969.33, 20,766,319.65 and 8,172,500.60 is: 11,278,117.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,047,969.33 : 20,766,319.65 = 8,172,500.60 : x
  2. Step 2: Convert to fraction form
    15,047,969.33/20,766,319.65 = 8,172,500.60/x
  3. Step 3: Cross multiply
    15,047,969.33x = 20,766,319.65 × 8,172,500.60
  4. Step 4: Simplify right side
    15,047,969.33x = 169,712,759,851,332.56
  5. Step 5: Solve for x
    x = 169,712,759,851,332.56/15,047,969.33
  6. Step 6: Final answer
    x = 11,278,117.07

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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.