Home / 28,918,939.44-39,908,543.58-15,865,961.16

Finding the Fourth Proportional to 28,918,939.44, 39,908,543.58 and 15,865,961.16

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Solution

The fourth proportional to 28,918,939.44, 39,908,543.58 and 15,865,961.16 is: 21,895,249.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,918,939.44 : 39,908,543.58 = 15,865,961.16 : x
  2. Step 2: Convert to fraction form
    28,918,939.44/39,908,543.58 = 15,865,961.16/x
  3. Step 3: Cross multiply
    28,918,939.44x = 39,908,543.58 × 15,865,961.16
  4. Step 4: Simplify right side
    28,918,939.44x = 633,187,402,392,447.38
  5. Step 5: Solve for x
    x = 633,187,402,392,447.38/28,918,939.44
  6. Step 6: Final answer
    x = 21,895,249.78

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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.