Home / 10,215,201.78-14,097,087.09-5,631,687.18

Finding the Fourth Proportional to 10,215,201.78, 14,097,087.09 and 5,631,687.18

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Solution

The fourth proportional to 10,215,201.78, 14,097,087.09 and 5,631,687.18 is: 7,771,788.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,215,201.78 : 14,097,087.09 = 5,631,687.18 : x
  2. Step 2: Convert to fraction form
    10,215,201.78/14,097,087.09 = 5,631,687.18/x
  3. Step 3: Cross multiply
    10,215,201.78x = 14,097,087.09 × 5,631,687.18
  4. Step 4: Simplify right side
    10,215,201.78x = 79,390,384,640,096.50
  5. Step 5: Solve for x
    x = 79,390,384,640,096.50/10,215,201.78
  6. Step 6: Final answer
    x = 7,771,788.20

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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.