Home / 28,720,090.87-39,633,671.03-15,667,346.33

Finding the Fourth Proportional to 28,720,090.87, 39,633,671.03 and 15,667,346.33

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Solution

The fourth proportional to 28,720,090.87, 39,633,671.03 and 15,667,346.33 is: 21,620,908.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,720,090.87 : 39,633,671.03 = 15,667,346.33 : x
  2. Step 2: Convert to fraction form
    28,720,090.87/39,633,671.03 = 15,667,346.33/x
  3. Step 3: Cross multiply
    28,720,090.87x = 39,633,671.03 × 15,667,346.33
  4. Step 4: Simplify right side
    28,720,090.87x = 620,954,450,316,547.75
  5. Step 5: Solve for x
    x = 620,954,450,316,547.75/28,720,090.87
  6. Step 6: Final answer
    x = 21,620,908.27

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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.