Home / 127,509,887.72-191,264,195.45-49,794,687.91

Finding the Fourth Proportional to 127,509,887.72, 191,264,195.45 and 49,794,687.91

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Solution

The fourth proportional to 127,509,887.72, 191,264,195.45 and 49,794,687.91 is: 74,691,783.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,509,887.72 : 191,264,195.45 = 49,794,687.91 : x
  2. Step 2: Convert to fraction form
    127,509,887.72/191,264,195.45 = 49,794,687.91/x
  3. Step 3: Cross multiply
    127,509,887.72x = 191,264,195.45 × 49,794,687.91
  4. Step 4: Simplify right side
    127,509,887.72x = 9,523,940,920,789,990
  5. Step 5: Solve for x
    x = 9,523,940,920,789,990/127,509,887.72
  6. Step 6: Final answer
    x = 74,691,783.45

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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.