Home / 253,622,810.61-379,887,604.43-171,288,943.72

Finding the Fourth Proportional to 253,622,810.61, 379,887,604.43 and 171,288,943.72

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Solution

The fourth proportional to 253,622,810.61, 379,887,604.43 and 171,288,943.72 is: 256,564,251.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,622,810.61 : 379,887,604.43 = 171,288,943.72 : x
  2. Step 2: Convert to fraction form
    253,622,810.61/379,887,604.43 = 171,288,943.72/x
  3. Step 3: Cross multiply
    253,622,810.61x = 379,887,604.43 × 171,288,943.72
  4. Step 4: Simplify right side
    253,622,810.61x = 65,070,546,493,329,728
  5. Step 5: Solve for x
    x = 65,070,546,493,329,728/253,622,810.61
  6. Step 6: Final answer
    x = 256,564,251.21

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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.