Home / 18,515,805.75-25,552,075.73-10,675,162.89

Finding the Fourth Proportional to 18,515,805.75, 25,552,075.73 and 10,675,162.89

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Solution

The fourth proportional to 18,515,805.75, 25,552,075.73 and 10,675,162.89 is: 14,731,876.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,515,805.75 : 25,552,075.73 = 10,675,162.89 : x
  2. Step 2: Convert to fraction form
    18,515,805.75/25,552,075.73 = 10,675,162.89/x
  3. Step 3: Cross multiply
    18,515,805.75x = 25,552,075.73 × 10,675,162.89
  4. Step 4: Simplify right side
    18,515,805.75x = 272,772,570,541,989.88
  5. Step 5: Solve for x
    x = 272,772,570,541,989.88/18,515,805.75
  6. Step 6: Final answer
    x = 14,731,876.87

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1.5x scale

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.