Home / 28,465,032.20-39,281,762.96-15,412,299.95

Finding the Fourth Proportional to 28,465,032.20, 39,281,762.96 and 15,412,299.95

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Solution

The fourth proportional to 28,465,032.20, 39,281,762.96 and 15,412,299.95 is: 21,268,983.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,465,032.20 : 39,281,762.96 = 15,412,299.95 : x
  2. Step 2: Convert to fraction form
    28,465,032.20/39,281,762.96 = 15,412,299.95/x
  3. Step 3: Cross multiply
    28,465,032.20x = 39,281,762.96 × 15,412,299.95
  4. Step 4: Simplify right side
    28,465,032.20x = 605,422,313,441,055
  5. Step 5: Solve for x
    x = 605,422,313,441,055/28,465,032.20
  6. Step 6: Final answer
    x = 21,268,983.97

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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.