Home / 20,117,728.79-30,178,752.23-8,604,391.82

Finding the Fourth Proportional to 20,117,728.79, 30,178,752.23 and 8,604,391.82

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Solution

The fourth proportional to 20,117,728.79, 30,178,752.23 and 8,604,391.82 is: 12,907,511.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,117,728.79 : 30,178,752.23 = 8,604,391.82 : x
  2. Step 2: Convert to fraction form
    20,117,728.79/30,178,752.23 = 8,604,391.82/x
  3. Step 3: Cross multiply
    20,117,728.79x = 30,178,752.23 × 8,604,391.82
  4. Step 4: Simplify right side
    20,117,728.79x = 259,669,808,825,618.78
  5. Step 5: Solve for x
    x = 259,669,808,825,618.78/20,117,728.79
  6. Step 6: Final answer
    x = 12,907,511.16

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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.