Home / 20,587,682.80-30,889,012.20-7,125,871.60

Finding the Fourth Proportional to 20,587,682.80, 30,889,012.20 and 7,125,871.60

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Solution

The fourth proportional to 20,587,682.80, 30,889,012.20 and 7,125,871.60 is: 10,691,399.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,587,682.80 : 30,889,012.20 = 7,125,871.60 : x
  2. Step 2: Convert to fraction form
    20,587,682.80/30,889,012.20 = 7,125,871.60/x
  3. Step 3: Cross multiply
    20,587,682.80x = 30,889,012.20 × 7,125,871.60
  4. Step 4: Simplify right side
    20,587,682.80x = 220,111,134,788,033.50
  5. Step 5: Solve for x
    x = 220,111,134,788,033.50/20,587,682.80
  6. Step 6: Final answer
    x = 10,691,399.17

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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.