Home / 28,925,723.88-39,918,108.78-15,872,868.62

Finding the Fourth Proportional to 28,925,723.88, 39,918,108.78 and 15,872,868.62

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Solution

The fourth proportional to 28,925,723.88, 39,918,108.78 and 15,872,868.62 is: 21,904,893.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,925,723.88 : 39,918,108.78 = 15,872,868.62 : x
  2. Step 2: Convert to fraction form
    28,925,723.88/39,918,108.78 = 15,872,868.62/x
  3. Step 3: Cross multiply
    28,925,723.88x = 39,918,108.78 × 15,872,868.62
  4. Step 4: Simplify right side
    28,925,723.88x = 633,614,896,223,808.50
  5. Step 5: Solve for x
    x = 633,614,896,223,808.50/28,925,723.88
  6. Step 6: Final answer
    x = 21,904,893.33

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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.