Home / 15,012,122.16-20,718,647.20-8,397,078.24

Finding the Fourth Proportional to 15,012,122.16, 20,718,647.20 and 8,397,078.24

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Solution

The fourth proportional to 15,012,122.16, 20,718,647.20 and 8,397,078.24 is: 11,589,041.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,012,122.16 : 20,718,647.20 = 8,397,078.24 : x
  2. Step 2: Convert to fraction form
    15,012,122.16/20,718,647.20 = 8,397,078.24/x
  3. Step 3: Cross multiply
    15,012,122.16x = 20,718,647.20 × 8,397,078.24
  4. Step 4: Simplify right side
    15,012,122.16x = 173,976,101,565,356.94
  5. Step 5: Solve for x
    x = 173,976,101,565,356.94/15,012,122.16
  6. Step 6: Final answer
    x = 11,589,041.16

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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.