Home / 13,211,397.20-19,817,095.80-7,542,693.20

Finding the Fourth Proportional to 13,211,397.20, 19,817,095.80 and 7,542,693.20

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Solution

The fourth proportional to 13,211,397.20, 19,817,095.80 and 7,542,693.20 is: 11,314,039.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,211,397.20 : 19,817,095.80 = 7,542,693.20 : x
  2. Step 2: Convert to fraction form
    13,211,397.20/19,817,095.80 = 7,542,693.20/x
  3. Step 3: Cross multiply
    13,211,397.20x = 19,817,095.80 × 7,542,693.20
  4. Step 4: Simplify right side
    13,211,397.20x = 149,474,273,734,408.56
  5. Step 5: Solve for x
    x = 149,474,273,734,408.56/13,211,397.20
  6. Step 6: Final answer
    x = 11,314,039.80

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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.