Home / 10,521,778.80-15,770,862.95-6,885,504.93

Finding the Fourth Proportional to 10,521,778.80, 15,770,862.95 and 6,885,504.93

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Solution

The fourth proportional to 10,521,778.80, 15,770,862.95 and 6,885,504.93 is: 10,320,531.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,521,778.80 : 15,770,862.95 = 6,885,504.93 : x
  2. Step 2: Convert to fraction form
    10,521,778.80/15,770,862.95 = 6,885,504.93/x
  3. Step 3: Cross multiply
    10,521,778.80x = 15,770,862.95 × 6,885,504.93
  4. Step 4: Simplify right side
    10,521,778.80x = 108,590,354,592,579.33
  5. Step 5: Solve for x
    x = 108,590,354,592,579.33/10,521,778.80
  6. Step 6: Final answer
    x = 10,320,531.98

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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.