Home / 20,604,403.47-28,432,653.53-11,436,324.51

Finding the Fourth Proportional to 20,604,403.47, 28,432,653.53 and 11,436,324.51

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Solution

The fourth proportional to 20,604,403.47, 28,432,653.53 and 11,436,324.51 is: 15,781,337.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,604,403.47 : 28,432,653.53 = 11,436,324.51 : x
  2. Step 2: Convert to fraction form
    20,604,403.47/28,432,653.53 = 11,436,324.51/x
  3. Step 3: Cross multiply
    20,604,403.47x = 28,432,653.53 × 11,436,324.51
  4. Step 4: Simplify right side
    20,604,403.47x = 325,165,052,392,295.38
  5. Step 5: Solve for x
    x = 325,165,052,392,295.38/20,604,403.47
  6. Step 6: Final answer
    x = 15,781,337.85

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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.