Home / 12,010,774.70-18,019,234.05-8,471,830.70

Finding the Fourth Proportional to 12,010,774.70, 18,019,234.05 and 8,471,830.70

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Solution

The fourth proportional to 12,010,774.70, 18,019,234.05 and 8,471,830.70 is: 12,709,912.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,010,774.70 : 18,019,234.05 = 8,471,830.70 : x
  2. Step 2: Convert to fraction form
    12,010,774.70/18,019,234.05 = 8,471,830.70/x
  3. Step 3: Cross multiply
    12,010,774.70x = 18,019,234.05 × 8,471,830.70
  4. Step 4: Simplify right side
    12,010,774.70x = 152,655,900,215,275.31
  5. Step 5: Solve for x
    x = 152,655,900,215,275.31/12,010,774.70
  6. Step 6: Final answer
    x = 12,709,912.89

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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.