Home / 13,372,005.05-18,453,440.63-7,260,433.55

Finding the Fourth Proportional to 13,372,005.05, 18,453,440.63 and 7,260,433.55

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Solution

The fourth proportional to 13,372,005.05, 18,453,440.63 and 7,260,433.55 is: 10,019,438.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,372,005.05 : 18,453,440.63 = 7,260,433.55 : x
  2. Step 2: Convert to fraction form
    13,372,005.05/18,453,440.63 = 7,260,433.55/x
  3. Step 3: Cross multiply
    13,372,005.05x = 18,453,440.63 × 7,260,433.55
  4. Step 4: Simplify right side
    13,372,005.05x = 133,979,979,426,682.97
  5. Step 5: Solve for x
    x = 133,979,979,426,682.97/13,372,005.05
  6. Step 6: Final answer
    x = 10,019,438.29

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1.5x scale

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.