Home / 55,004,751.20-82,507,142.08-20,456,638.98

Finding the Fourth Proportional to 55,004,751.20, 82,507,142.08 and 20,456,638.98

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Solution

The fourth proportional to 55,004,751.20, 82,507,142.08 and 20,456,638.98 is: 30,684,964.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,004,751.20 : 82,507,142.08 = 20,456,638.98 : x
  2. Step 2: Convert to fraction form
    55,004,751.20/82,507,142.08 = 20,456,638.98/x
  3. Step 3: Cross multiply
    55,004,751.20x = 82,507,142.08 × 20,456,638.98
  4. Step 4: Simplify right side
    55,004,751.20x = 1,687,818,818,802,126.25
  5. Step 5: Solve for x
    x = 1,687,818,818,802,126.25/55,004,751.20
  6. Step 6: Final answer
    x = 30,684,964.15

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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.