Home / 28,790,448.13-43,185,672.40-9,621,205.21

Finding the Fourth Proportional to 28,790,448.13, 43,185,672.40 and 9,621,205.21

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Solution

The fourth proportional to 28,790,448.13, 43,185,672.40 and 9,621,205.21 is: 14,431,807.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,790,448.13 : 43,185,672.40 = 9,621,205.21 : x
  2. Step 2: Convert to fraction form
    28,790,448.13/43,185,672.40 = 9,621,205.21/x
  3. Step 3: Cross multiply
    28,790,448.13x = 43,185,672.40 × 9,621,205.21
  4. Step 4: Simplify right side
    28,790,448.13x = 415,498,216,340,202
  5. Step 5: Solve for x
    x = 415,498,216,340,202/28,790,448.13
  6. Step 6: Final answer
    x = 14,431,807.88

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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.