Home / 12,770,470.70-19,139,071.90-5,188,572.62

Finding the Fourth Proportional to 12,770,470.70, 19,139,071.90 and 5,188,572.62

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Solution

The fourth proportional to 12,770,470.70, 19,139,071.90 and 5,188,572.62 is: 7,776,100.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,770,470.70 : 19,139,071.90 = 5,188,572.62 : x
  2. Step 2: Convert to fraction form
    12,770,470.70/19,139,071.90 = 5,188,572.62/x
  3. Step 3: Cross multiply
    12,770,470.70x = 19,139,071.90 × 5,188,572.62
  4. Step 4: Simplify right side
    12,770,470.70x = 99,304,464,432,551.38
  5. Step 5: Solve for x
    x = 99,304,464,432,551.38/12,770,470.70
  6. Step 6: Final answer
    x = 7,776,100.57

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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.