Home / 10,404,821.60-15,607,232.40-7,381,512.80

Finding the Fourth Proportional to 10,404,821.60, 15,607,232.40 and 7,381,512.80

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Solution

The fourth proportional to 10,404,821.60, 15,607,232.40 and 7,381,512.80 is: 11,072,269.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,404,821.60 : 15,607,232.40 = 7,381,512.80 : x
  2. Step 2: Convert to fraction form
    10,404,821.60/15,607,232.40 = 7,381,512.80/x
  3. Step 3: Cross multiply
    10,404,821.60x = 15,607,232.40 × 7,381,512.80
  4. Step 4: Simplify right side
    10,404,821.60x = 115,204,985,733,174.72
  5. Step 5: Solve for x
    x = 115,204,985,733,174.72/10,404,821.60
  6. Step 6: Final answer
    x = 11,072,269.20

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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.