Home / 28,774,921.60-43,162,382.40-20,744,257.60

Finding the Fourth Proportional to 28,774,921.60, 43,162,382.40 and 20,744,257.60

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Solution

The fourth proportional to 28,774,921.60, 43,162,382.40 and 20,744,257.60 is: 31,116,386.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,774,921.60 : 43,162,382.40 = 20,744,257.60 : x
  2. Step 2: Convert to fraction form
    28,774,921.60/43,162,382.40 = 20,744,257.60/x
  3. Step 3: Cross multiply
    28,774,921.60x = 43,162,382.40 × 20,744,257.60
  4. Step 4: Simplify right side
    28,774,921.60x = 895,371,579,135,306.25
  5. Step 5: Solve for x
    x = 895,371,579,135,306.25/28,774,921.60
  6. Step 6: Final answer
    x = 31,116,386.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.