Home / 20,736,013.60-31,104,020.40-11,778,061.60

Finding the Fourth Proportional to 20,736,013.60, 31,104,020.40 and 11,778,061.60

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Solution

The fourth proportional to 20,736,013.60, 31,104,020.40 and 11,778,061.60 is: 17,667,092.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,736,013.60 : 31,104,020.40 = 11,778,061.60 : x
  2. Step 2: Convert to fraction form
    20,736,013.60/31,104,020.40 = 11,778,061.60/x
  3. Step 3: Cross multiply
    20,736,013.60x = 31,104,020.40 × 11,778,061.60
  4. Step 4: Simplify right side
    20,736,013.60x = 366,345,068,278,856.62
  5. Step 5: Solve for x
    x = 366,345,068,278,856.62/20,736,013.60
  6. Step 6: Final answer
    x = 17,667,092.40

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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.