Home / 76,731,864.30-105,936,897.87-49,934,729.34

Finding the Fourth Proportional to 76,731,864.30, 105,936,897.87 and 49,934,729.34

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Solution

The fourth proportional to 76,731,864.30, 105,936,897.87 and 49,934,729.34 is: 68,940,463.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,731,864.30 : 105,936,897.87 = 49,934,729.34 : x
  2. Step 2: Convert to fraction form
    76,731,864.30/105,936,897.87 = 49,934,729.34/x
  3. Step 3: Cross multiply
    76,731,864.30x = 105,936,897.87 × 49,934,729.34
  4. Step 4: Simplify right side
    76,731,864.30x = 5,289,930,322,257,673
  5. Step 5: Solve for x
    x = 5,289,930,322,257,673/76,731,864.30
  6. Step 6: Final answer
    x = 68,940,463.92

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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.