Home / 72,414,145.80-108,747,189.90-38,401,921.80

Finding the Fourth Proportional to 72,414,145.80, 108,747,189.90 and 38,401,921.80

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Solution

The fourth proportional to 72,414,145.80, 108,747,189.90 and 38,401,921.80 is: 57,669,686.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,414,145.80 : 108,747,189.90 = 38,401,921.80 : x
  2. Step 2: Convert to fraction form
    72,414,145.80/108,747,189.90 = 38,401,921.80/x
  3. Step 3: Cross multiply
    72,414,145.80x = 108,747,189.90 × 38,401,921.80
  4. Step 4: Simplify right side
    72,414,145.80x = 4,176,101,082,509,549.50
  5. Step 5: Solve for x
    x = 4,176,101,082,509,549.50/72,414,145.80
  6. Step 6: Final answer
    x = 57,669,686.45

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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.