Home / 20,790,558.31-31,191,151.87-8,007,630.79

Finding the Fourth Proportional to 20,790,558.31, 31,191,151.87 and 8,007,630.79

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Solution

The fourth proportional to 20,790,558.31, 31,191,151.87 and 8,007,630.79 is: 12,013,493.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,790,558.31 : 31,191,151.87 = 8,007,630.79 : x
  2. Step 2: Convert to fraction form
    20,790,558.31/31,191,151.87 = 8,007,630.79/x
  3. Step 3: Cross multiply
    20,790,558.31x = 31,191,151.87 × 8,007,630.79
  4. Step 4: Simplify right side
    20,790,558.31x = 249,767,228,102,832.84
  5. Step 5: Solve for x
    x = 249,767,228,102,832.84/20,790,558.31
  6. Step 6: Final answer
    x = 12,013,493.07

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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.