Home / 28,386,118.20-39,172,857.48-15,333,376.44

Finding the Fourth Proportional to 28,386,118.20, 39,172,857.48 and 15,333,376.44

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Solution

The fourth proportional to 28,386,118.20, 39,172,857.48 and 15,333,376.44 is: 21,160,067.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,386,118.20 : 39,172,857.48 = 15,333,376.44 : x
  2. Step 2: Convert to fraction form
    28,386,118.20/39,172,857.48 = 15,333,376.44/x
  3. Step 3: Cross multiply
    28,386,118.20x = 39,172,857.48 × 15,333,376.44
  4. Step 4: Simplify right side
    28,386,118.20x = 600,652,169,971,309.75
  5. Step 5: Solve for x
    x = 600,652,169,971,309.75/28,386,118.20
  6. Step 6: Final answer
    x = 21,160,067.25

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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.