Home / 10,649,763.40-15,965,313.90-6,391,625.80

Finding the Fourth Proportional to 10,649,763.40, 15,965,313.90 and 6,391,625.80

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Solution

The fourth proportional to 10,649,763.40, 15,965,313.90 and 6,391,625.80 is: 9,581,838.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,649,763.40 : 15,965,313.90 = 6,391,625.80 : x
  2. Step 2: Convert to fraction form
    10,649,763.40/15,965,313.90 = 6,391,625.80/x
  3. Step 3: Cross multiply
    10,649,763.40x = 15,965,313.90 × 6,391,625.80
  4. Step 4: Simplify right side
    10,649,763.40x = 102,044,312,228,338.62
  5. Step 5: Solve for x
    x = 102,044,312,228,338.62/10,649,763.40
  6. Step 6: Final answer
    x = 9,581,838.43

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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.