Home / 71,554,004.80-107,278,519.20-28,401,870.40

Finding the Fourth Proportional to 71,554,004.80, 107,278,519.20 and 28,401,870.40

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Solution

The fourth proportional to 71,554,004.80, 107,278,519.20 and 28,401,870.40 is: 42,581,971.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,554,004.80 : 107,278,519.20 = 28,401,870.40 : x
  2. Step 2: Convert to fraction form
    71,554,004.80/107,278,519.20 = 28,401,870.40/x
  3. Step 3: Cross multiply
    71,554,004.80x = 107,278,519.20 × 28,401,870.40
  4. Step 4: Simplify right side
    71,554,004.80x = 3,046,910,599,022,311.50
  5. Step 5: Solve for x
    x = 3,046,910,599,022,311.50/71,554,004.80
  6. Step 6: Final answer
    x = 42,581,971.58

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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.