Home / 20,612,787.59-28,456,690.37-15,892,874.46

Finding the Fourth Proportional to 20,612,787.59, 28,456,690.37 and 15,892,874.46

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Solution

The fourth proportional to 20,612,787.59, 28,456,690.37 and 15,892,874.46 is: 21,940,681.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,612,787.59 : 28,456,690.37 = 15,892,874.46 : x
  2. Step 2: Convert to fraction form
    20,612,787.59/28,456,690.37 = 15,892,874.46/x
  3. Step 3: Cross multiply
    20,612,787.59x = 28,456,690.37 × 15,892,874.46
  4. Step 4: Simplify right side
    20,612,787.59x = 452,258,607,518,036.56
  5. Step 5: Solve for x
    x = 452,258,607,518,036.56/20,612,787.59
  6. Step 6: Final answer
    x = 21,940,681.51

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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.