Home / 14,207,801.20-21,312,809.60-5,111,081.60

Finding the Fourth Proportional to 14,207,801.20, 21,312,809.60 and 5,111,081.60

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Solution

The fourth proportional to 14,207,801.20, 21,312,809.60 and 5,111,081.60 is: 7,667,020.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,207,801.20 : 21,312,809.60 = 5,111,081.60 : x
  2. Step 2: Convert to fraction form
    14,207,801.20/21,312,809.60 = 5,111,081.60/x
  3. Step 3: Cross multiply
    14,207,801.20x = 21,312,809.60 × 5,111,081.60
  4. Step 4: Simplify right side
    14,207,801.20x = 108,931,508,990,863.36
  5. Step 5: Solve for x
    x = 108,931,508,990,863.36/14,207,801.20
  6. Step 6: Final answer
    x = 7,667,020.92

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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.