Home / 13,609,218-18,780,500.64-7,414,338.72

Finding the Fourth Proportional to 13,609,218, 18,780,500.64 and 7,414,338.72

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Solution

The fourth proportional to 13,609,218, 18,780,500.64 and 7,414,338.72 is: 10,231,667.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,609,218 : 18,780,500.64 = 7,414,338.72 : x
  2. Step 2: Convert to fraction form
    13,609,218/18,780,500.64 = 7,414,338.72/x
  3. Step 3: Cross multiply
    13,609,218x = 18,780,500.64 × 7,414,338.72
  4. Step 4: Simplify right side
    13,609,218x = 139,244,993,076,136.78
  5. Step 5: Solve for x
    x = 139,244,993,076,136.78/13,609,218
  6. Step 6: Final answer
    x = 10,231,667.47

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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.