Home / 28,633,254.75-39,513,559.41-15,580,288.80

Finding the Fourth Proportional to 28,633,254.75, 39,513,559.41 and 15,580,288.80

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Solution

The fourth proportional to 28,633,254.75, 39,513,559.41 and 15,580,288.80 is: 21,500,617.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,633,254.75 : 39,513,559.41 = 15,580,288.80 : x
  2. Step 2: Convert to fraction form
    28,633,254.75/39,513,559.41 = 15,580,288.80/x
  3. Step 3: Cross multiply
    28,633,254.75x = 39,513,559.41 × 15,580,288.80
  4. Step 4: Simplify right side
    28,633,254.75x = 615,632,667,123,757.62
  5. Step 5: Solve for x
    x = 615,632,667,123,757.62/28,633,254.75
  6. Step 6: Final answer
    x = 21,500,617.81

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1.5x scale

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.