Home / 20,286,321.42-27,995,800.59-11,118,987.66

Finding the Fourth Proportional to 20,286,321.42, 27,995,800.59 and 11,118,987.66

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Solution

The fourth proportional to 20,286,321.42, 27,995,800.59 and 11,118,987.66 is: 15,344,574.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,286,321.42 : 27,995,800.59 = 11,118,987.66 : x
  2. Step 2: Convert to fraction form
    20,286,321.42/27,995,800.59 = 11,118,987.66/x
  3. Step 3: Cross multiply
    20,286,321.42x = 27,995,800.59 × 11,118,987.66
  4. Step 4: Simplify right side
    20,286,321.42x = 311,284,961,292,030.75
  5. Step 5: Solve for x
    x = 311,284,961,292,030.75/20,286,321.42
  6. Step 6: Final answer
    x = 15,344,574.05

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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.