Home / 28,139,785.16-42,213,082.32-9,940,255.97

Finding the Fourth Proportional to 28,139,785.16, 42,213,082.32 and 9,940,255.97

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Solution

The fourth proportional to 28,139,785.16, 42,213,082.32 and 9,940,255.97 is: 14,911,586.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,139,785.16 : 42,213,082.32 = 9,940,255.97 : x
  2. Step 2: Convert to fraction form
    28,139,785.16/42,213,082.32 = 9,940,255.97/x
  3. Step 3: Cross multiply
    28,139,785.16x = 42,213,082.32 × 9,940,255.97
  4. Step 4: Simplify right side
    28,139,785.16x = 419,608,843,332,416.06
  5. Step 5: Solve for x
    x = 419,608,843,332,416.06/28,139,785.16
  6. Step 6: Final answer
    x = 14,911,586.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.