Home / 31,421,645.77-43,361,191.51-18,191,380.62

Finding the Fourth Proportional to 31,421,645.77, 43,361,191.51 and 18,191,380.62

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Solution

The fourth proportional to 31,421,645.77, 43,361,191.51 and 18,191,380.62 is: 25,103,711.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,421,645.77 : 43,361,191.51 = 18,191,380.62 : x
  2. Step 2: Convert to fraction form
    31,421,645.77/43,361,191.51 = 18,191,380.62/x
  3. Step 3: Cross multiply
    31,421,645.77x = 43,361,191.51 × 18,191,380.62
  4. Step 4: Simplify right side
    31,421,645.77x = 788,799,938,895,122.50
  5. Step 5: Solve for x
    x = 788,799,938,895,122.50/31,421,645.77
  6. Step 6: Final answer
    x = 25,103,711.77

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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.