Home / 39,310,068.80-58,965,103.20-20,178,192.80

Finding the Fourth Proportional to 39,310,068.80, 58,965,103.20 and 20,178,192.80

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Solution

The fourth proportional to 39,310,068.80, 58,965,103.20 and 20,178,192.80 is: 30,267,289.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,310,068.80 : 58,965,103.20 = 20,178,192.80 : x
  2. Step 2: Convert to fraction form
    39,310,068.80/58,965,103.20 = 20,178,192.80/x
  3. Step 3: Cross multiply
    39,310,068.80x = 58,965,103.20 × 20,178,192.80
  4. Step 4: Simplify right side
    39,310,068.80x = 1,189,809,220,841,497
  5. Step 5: Solve for x
    x = 1,189,809,220,841,497/39,310,068.80
  6. Step 6: Final answer
    x = 30,267,289.20

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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.