Home / 52,493,904.80-78,740,857.20-20,581,200.80

Finding the Fourth Proportional to 52,493,904.80, 78,740,857.20 and 20,581,200.80

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Solution

The fourth proportional to 52,493,904.80, 78,740,857.20 and 20,581,200.80 is: 30,871,801.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,493,904.80 : 78,740,857.20 = 20,581,200.80 : x
  2. Step 2: Convert to fraction form
    52,493,904.80/78,740,857.20 = 20,581,200.80/x
  3. Step 3: Cross multiply
    52,493,904.80x = 78,740,857.20 × 20,581,200.80
  4. Step 4: Simplify right side
    52,493,904.80x = 1,620,581,393,197,326
  5. Step 5: Solve for x
    x = 1,620,581,393,197,326/52,493,904.80
  6. Step 6: Final answer
    x = 30,871,801.20

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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.