Home / 31,030,939.55-42,822,696.31-17,985,765.22

Finding the Fourth Proportional to 31,030,939.55, 42,822,696.31 and 17,985,765.22

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Solution

The fourth proportional to 31,030,939.55, 42,822,696.31 and 17,985,765.22 is: 24,820,355.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,030,939.55 : 42,822,696.31 = 17,985,765.22 : x
  2. Step 2: Convert to fraction form
    31,030,939.55/42,822,696.31 = 17,985,765.22/x
  3. Step 3: Cross multiply
    31,030,939.55x = 42,822,696.31 × 17,985,765.22
  4. Step 4: Simplify right side
    31,030,939.55x = 770,198,961,868,169.12
  5. Step 5: Solve for x
    x = 770,198,961,868,169.12/31,030,939.55
  6. Step 6: Final answer
    x = 24,820,355.84

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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.