Home / 20,863,862.57-28,791,701.37-11,569,932.90

Finding the Fourth Proportional to 20,863,862.57, 28,791,701.37 and 11,569,932.90

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Solution

The fourth proportional to 20,863,862.57, 28,791,701.37 and 11,569,932.90 is: 15,966,269.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,863,862.57 : 28,791,701.37 = 11,569,932.90 : x
  2. Step 2: Convert to fraction form
    20,863,862.57/28,791,701.37 = 11,569,932.90/x
  3. Step 3: Cross multiply
    20,863,862.57x = 28,791,701.37 × 11,569,932.90
  4. Step 4: Simplify right side
    20,863,862.57x = 333,118,052,927,738.12
  5. Step 5: Solve for x
    x = 333,118,052,927,738.12/20,863,862.57
  6. Step 6: Final answer
    x = 15,966,269.51

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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.