Home / 15,718,838.16-21,691,993.32-8,749,365.42

Finding the Fourth Proportional to 15,718,838.16, 21,691,993.32 and 8,749,365.42

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Solution

The fourth proportional to 15,718,838.16, 21,691,993.32 and 8,749,365.42 is: 12,074,122.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,718,838.16 : 21,691,993.32 = 8,749,365.42 : x
  2. Step 2: Convert to fraction form
    15,718,838.16/21,691,993.32 = 8,749,365.42/x
  3. Step 3: Cross multiply
    15,718,838.16x = 21,691,993.32 × 8,749,365.42
  4. Step 4: Simplify right side
    15,718,838.16x = 189,791,176,244,879
  5. Step 5: Solve for x
    x = 189,791,176,244,879/15,718,838.16
  6. Step 6: Final answer
    x = 12,074,122.42

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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.