Home / 12,123,245.70-16,732,246.41-7,228,782.90

Finding the Fourth Proportional to 12,123,245.70, 16,732,246.41 and 7,228,782.90

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Solution

The fourth proportional to 12,123,245.70, 16,732,246.41 and 7,228,782.90 is: 9,977,012.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,123,245.70 : 16,732,246.41 = 7,228,782.90 : x
  2. Step 2: Convert to fraction form
    12,123,245.70/16,732,246.41 = 7,228,782.90/x
  3. Step 3: Cross multiply
    12,123,245.70x = 16,732,246.41 × 7,228,782.90
  4. Step 4: Simplify right side
    12,123,245.70x = 120,953,776,727,194.39
  5. Step 5: Solve for x
    x = 120,953,776,727,194.39/12,123,245.70
  6. Step 6: Final answer
    x = 9,977,012.73

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1.5x scale

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.