Home / 10,205,004.70-15,286,511.85-5,159,158.30

Finding the Fourth Proportional to 10,205,004.70, 15,286,511.85 and 5,159,158.30

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Solution

The fourth proportional to 10,205,004.70, 15,286,511.85 and 5,159,158.30 is: 7,728,123.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,205,004.70 : 15,286,511.85 = 5,159,158.30 : x
  2. Step 2: Convert to fraction form
    10,205,004.70/15,286,511.85 = 5,159,158.30/x
  3. Step 3: Cross multiply
    10,205,004.70x = 15,286,511.85 × 5,159,158.30
  4. Step 4: Simplify right side
    10,205,004.70x = 78,865,534,488,975.84
  5. Step 5: Solve for x
    x = 78,865,534,488,975.84/10,205,004.70
  6. Step 6: Final answer
    x = 7,728,123.29

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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.