Home / 20,791,618.38-28,680,914.16-12,088,828.94

Finding the Fourth Proportional to 20,791,618.38, 28,680,914.16 and 12,088,828.94

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Solution

The fourth proportional to 20,791,618.38, 28,680,914.16 and 12,088,828.94 is: 16,675,886.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,791,618.38 : 28,680,914.16 = 12,088,828.94 : x
  2. Step 2: Convert to fraction form
    20,791,618.38/28,680,914.16 = 12,088,828.94/x
  3. Step 3: Cross multiply
    20,791,618.38x = 28,680,914.16 × 12,088,828.94
  4. Step 4: Simplify right side
    20,791,618.38x = 346,718,664,979,659.25
  5. Step 5: Solve for x
    x = 346,718,664,979,659.25/20,791,618.38
  6. Step 6: Final answer
    x = 16,675,886.34

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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.