Home / 7,912,981.80-11,867,811.75-2,231,877.51

Finding the Fourth Proportional to 7,912,981.80, 11,867,811.75 and 2,231,877.51

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Solution

The fourth proportional to 7,912,981.80, 11,867,811.75 and 2,231,877.51 is: 3,347,347.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,912,981.80 : 11,867,811.75 = 2,231,877.51 : x
  2. Step 2: Convert to fraction form
    7,912,981.80/11,867,811.75 = 2,231,877.51/x
  3. Step 3: Cross multiply
    7,912,981.80x = 11,867,811.75 × 2,231,877.51
  4. Step 4: Simplify right side
    7,912,981.80x = 26,487,502,137,738.74
  5. Step 5: Solve for x
    x = 26,487,502,137,738.74/7,912,981.80
  6. Step 6: Final answer
    x = 3,347,347.79

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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.