Home / 72,941,889.30-109,147,113.45-53,810,013.30

Finding the Fourth Proportional to 72,941,889.30, 109,147,113.45 and 53,810,013.30

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Solution

The fourth proportional to 72,941,889.30, 109,147,113.45 and 53,810,013.30 is: 80,518,995.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,941,889.30 : 109,147,113.45 = 53,810,013.30 : x
  2. Step 2: Convert to fraction form
    72,941,889.30/109,147,113.45 = 53,810,013.30/x
  3. Step 3: Cross multiply
    72,941,889.30x = 109,147,113.45 × 53,810,013.30
  4. Step 4: Simplify right side
    72,941,889.30x = 5,873,207,626,401,109
  5. Step 5: Solve for x
    x = 5,873,207,626,401,109/72,941,889.30
  6. Step 6: Final answer
    x = 80,518,995.09

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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.