Home / 18,115,977,917.22-27,164,875,357.91-10,555,206,019.55

Finding the Fourth Proportional to 18,115,977,917.22, 27,164,875,357.91 and 10,555,206,019.55

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Solution

The fourth proportional to 18,115,977,917.22, 27,164,875,357.91 and 10,555,206,019.55 is: 15,827,511,890.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,115,977,917.22 : 27,164,875,357.91 = 10,555,206,019.55 : x
  2. Step 2: Convert to fraction form
    18,115,977,917.22/27,164,875,357.91 = 10,555,206,019.55/x
  3. Step 3: Cross multiply
    18,115,977,917.22x = 27,164,875,357.91 × 10,555,206,019.55
  4. Step 4: Simplify right side
    18,115,977,917.22x = 286,730,855,897,948,487,680
  5. Step 5: Solve for x
    x = 286,730,855,897,948,487,680/18,115,977,917.22
  6. Step 6: Final answer
    x = 15,827,511,890.78

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1.5x scale

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.