Home / 28,568,589.40-42,841,918.32-12,163,473.10

Finding the Fourth Proportional to 28,568,589.40, 42,841,918.32 and 12,163,473.10

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Solution

The fourth proportional to 28,568,589.40, 42,841,918.32 and 12,163,473.10 is: 18,240,540.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,568,589.40 : 42,841,918.32 = 12,163,473.10 : x
  2. Step 2: Convert to fraction form
    28,568,589.40/42,841,918.32 = 12,163,473.10/x
  3. Step 3: Cross multiply
    28,568,589.40x = 42,841,918.32 × 12,163,473.10
  4. Step 4: Simplify right side
    28,568,589.40x = 521,106,521,037,717.19
  5. Step 5: Solve for x
    x = 521,106,521,037,717.19/28,568,589.40
  6. Step 6: Final answer
    x = 18,240,540.82

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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.