Home / 31,095,025.05-42,924,896.13-20,087,143.26

Finding the Fourth Proportional to 31,095,025.05, 42,924,896.13 and 20,087,143.26

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Solution

The fourth proportional to 31,095,025.05, 42,924,896.13 and 20,087,143.26 is: 27,729,147.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,095,025.05 : 42,924,896.13 = 20,087,143.26 : x
  2. Step 2: Convert to fraction form
    31,095,025.05/42,924,896.13 = 20,087,143.26/x
  3. Step 3: Cross multiply
    31,095,025.05x = 42,924,896.13 × 20,087,143.26
  4. Step 4: Simplify right side
    31,095,025.05x = 862,238,537,983,929.75
  5. Step 5: Solve for x
    x = 862,238,537,983,929.75/31,095,025.05
  6. Step 6: Final answer
    x = 27,729,147.56

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.