Home / 10,204,969.70-15,286,459.35-5,159,123.30

Finding the Fourth Proportional to 10,204,969.70, 15,286,459.35 and 5,159,123.30

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Solution

The fourth proportional to 10,204,969.70, 15,286,459.35 and 5,159,123.30 is: 7,728,070.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,204,969.70 : 15,286,459.35 = 5,159,123.30 : x
  2. Step 2: Convert to fraction form
    10,204,969.70/15,286,459.35 = 5,159,123.30/x
  3. Step 3: Cross multiply
    10,204,969.70x = 15,286,459.35 × 5,159,123.30
  4. Step 4: Simplify right side
    10,204,969.70x = 78,864,728,607,087.84
  5. Step 5: Solve for x
    x = 78,864,728,607,087.84/10,204,969.70
  6. Step 6: Final answer
    x = 7,728,070.82

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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.