Home / 20,142,322.32-30,216,485.52-7,187,463.12

Finding the Fourth Proportional to 20,142,322.32, 30,216,485.52 and 7,187,463.12

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Solution

The fourth proportional to 20,142,322.32, 30,216,485.52 and 7,187,463.12 is: 10,782,265.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,142,322.32 : 30,216,485.52 = 7,187,463.12 : x
  2. Step 2: Convert to fraction form
    20,142,322.32/30,216,485.52 = 7,187,463.12/x
  3. Step 3: Cross multiply
    20,142,322.32x = 30,216,485.52 × 7,187,463.12
  4. Step 4: Simplify right side
    20,142,322.32x = 217,179,875,291,014.03
  5. Step 5: Solve for x
    x = 217,179,875,291,014.03/20,142,322.32
  6. Step 6: Final answer
    x = 10,782,265.91

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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.