Home / 28,707,608.36-39,617,455.92-15,655,579.40

Finding the Fourth Proportional to 28,707,608.36, 39,617,455.92 and 15,655,579.40

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Solution

The fourth proportional to 28,707,608.36, 39,617,455.92 and 15,655,579.40 is: 21,605,221.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,707,608.36 : 39,617,455.92 = 15,655,579.40 : x
  2. Step 2: Convert to fraction form
    28,707,608.36/39,617,455.92 = 15,655,579.40/x
  3. Step 3: Cross multiply
    28,707,608.36x = 39,617,455.92 × 15,655,579.40
  4. Step 4: Simplify right side
    28,707,608.36x = 620,234,226,781,560.12
  5. Step 5: Solve for x
    x = 620,234,226,781,560.12/28,707,608.36
  6. Step 6: Final answer
    x = 21,605,221.13

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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.