Home / 28,979,507.29-39,992,620.04-15,926,529.01

Finding the Fourth Proportional to 28,979,507.29, 39,992,620.04 and 15,926,529.01

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Solution

The fourth proportional to 28,979,507.29, 39,992,620.04 and 15,926,529.01 is: 21,979,104.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,979,507.29 : 39,992,620.04 = 15,926,529.01 : x
  2. Step 2: Convert to fraction form
    28,979,507.29/39,992,620.04 = 15,926,529.01/x
  3. Step 3: Cross multiply
    28,979,507.29x = 39,992,620.04 × 15,926,529.01
  4. Step 4: Simplify right side
    28,979,507.29x = 636,943,623,252,967.38
  5. Step 5: Solve for x
    x = 636,943,623,252,967.38/28,979,507.29
  6. Step 6: Final answer
    x = 21,979,104.64

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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.