Home / 30,718,728.36-42,391,035.72-16,967,397.24

Finding the Fourth Proportional to 30,718,728.36, 42,391,035.72 and 16,967,397.24

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Solution

The fourth proportional to 30,718,728.36, 42,391,035.72 and 16,967,397.24 is: 23,414,561.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,718,728.36 : 42,391,035.72 = 16,967,397.24 : x
  2. Step 2: Convert to fraction form
    30,718,728.36/42,391,035.72 = 16,967,397.24/x
  3. Step 3: Cross multiply
    30,718,728.36x = 42,391,035.72 × 16,967,397.24
  4. Step 4: Simplify right side
    30,718,728.36x = 719,265,542,476,269.38
  5. Step 5: Solve for x
    x = 719,265,542,476,269.38/30,718,728.36
  6. Step 6: Final answer
    x = 23,414,561.11

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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.