Home / 14,942,689.76-20,620,688.31-8,416,953.92

Finding the Fourth Proportional to 14,942,689.76, 20,620,688.31 and 8,416,953.92

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Solution

The fourth proportional to 14,942,689.76, 20,620,688.31 and 8,416,953.92 is: 11,615,270.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,942,689.76 : 20,620,688.31 = 8,416,953.92 : x
  2. Step 2: Convert to fraction form
    14,942,689.76/20,620,688.31 = 8,416,953.92/x
  3. Step 3: Cross multiply
    14,942,689.76x = 20,620,688.31 × 8,416,953.92
  4. Step 4: Simplify right side
    14,942,689.76x = 173,563,383,355,504.38
  5. Step 5: Solve for x
    x = 173,563,383,355,504.38/14,942,689.76
  6. Step 6: Final answer
    x = 11,615,270.48

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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.