Home / 31,030,985.43-42,822,759.51-17,985,811.05

Finding the Fourth Proportional to 31,030,985.43, 42,822,759.51 and 17,985,811.05

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Solution

The fourth proportional to 31,030,985.43, 42,822,759.51 and 17,985,811.05 is: 24,820,419.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,030,985.43 : 42,822,759.51 = 17,985,811.05 : x
  2. Step 2: Convert to fraction form
    31,030,985.43/42,822,759.51 = 17,985,811.05/x
  3. Step 3: Cross multiply
    31,030,985.43x = 42,822,759.51 × 17,985,811.05
  4. Step 4: Simplify right side
    31,030,985.43x = 770,202,061,186,450.62
  5. Step 5: Solve for x
    x = 770,202,061,186,450.62/31,030,985.43
  6. Step 6: Final answer
    x = 24,820,419.03

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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.