Home / 13,712,288.87-18,922,837.89-7,517,223.06

Finding the Fourth Proportional to 13,712,288.87, 18,922,837.89 and 7,517,223.06

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Solution

The fourth proportional to 13,712,288.87, 18,922,837.89 and 7,517,223.06 is: 10,373,701.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,712,288.87 : 18,922,837.89 = 7,517,223.06 : x
  2. Step 2: Convert to fraction form
    13,712,288.87/18,922,837.89 = 7,517,223.06/x
  3. Step 3: Cross multiply
    13,712,288.87x = 18,922,837.89 × 7,517,223.06
  4. Step 4: Simplify right side
    13,712,288.87x = 142,247,193,347,349.75
  5. Step 5: Solve for x
    x = 142,247,193,347,349.75/13,712,288.87
  6. Step 6: Final answer
    x = 10,373,701.63

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.