Home / 20,189,429.23-27,860,358.49-11,020,300.51

Finding the Fourth Proportional to 20,189,429.23, 27,860,358.49 and 11,020,300.51

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Solution

The fourth proportional to 20,189,429.23, 27,860,358.49 and 11,020,300.51 is: 15,207,439.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,189,429.23 : 27,860,358.49 = 11,020,300.51 : x
  2. Step 2: Convert to fraction form
    20,189,429.23/27,860,358.49 = 11,020,300.51/x
  3. Step 3: Cross multiply
    20,189,429.23x = 27,860,358.49 × 11,020,300.51
  4. Step 4: Simplify right side
    20,189,429.23x = 307,029,522,876,129.81
  5. Step 5: Solve for x
    x = 307,029,522,876,129.81/20,189,429.23
  6. Step 6: Final answer
    x = 15,207,439.47

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1.5x scale

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.