Home / 31,282,627.72-43,161,920.94-18,882,920.92

Finding the Fourth Proportional to 31,282,627.72, 43,161,920.94 and 18,882,920.92

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Solution

The fourth proportional to 31,282,627.72, 43,161,920.94 and 18,882,920.92 is: 26,053,538.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,282,627.72 : 43,161,920.94 = 18,882,920.92 : x
  2. Step 2: Convert to fraction form
    31,282,627.72/43,161,920.94 = 18,882,920.92/x
  3. Step 3: Cross multiply
    31,282,627.72x = 43,161,920.94 × 18,882,920.92
  4. Step 4: Simplify right side
    31,282,627.72x = 815,023,139,865,312.12
  5. Step 5: Solve for x
    x = 815,023,139,865,312.12/31,282,627.72
  6. Step 6: Final answer
    x = 26,053,538.31

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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.