Home / 28,465,037.45-39,281,770.22-15,412,305.21

Finding the Fourth Proportional to 28,465,037.45, 39,281,770.22 and 15,412,305.21

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Solution

The fourth proportional to 28,465,037.45, 39,281,770.22 and 15,412,305.21 is: 21,268,991.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,465,037.45 : 39,281,770.22 = 15,412,305.21 : x
  2. Step 2: Convert to fraction form
    28,465,037.45/39,281,770.22 = 15,412,305.21/x
  3. Step 3: Cross multiply
    28,465,037.45x = 39,281,770.22 × 15,412,305.21
  4. Step 4: Simplify right side
    28,465,037.45x = 605,422,631,742,667.38
  5. Step 5: Solve for x
    x = 605,422,631,742,667.38/28,465,037.45
  6. Step 6: Final answer
    x = 21,268,991.23

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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.