Home / 78,716,107.20-118,096,279.20-38,327,908.80

Finding the Fourth Proportional to 78,716,107.20, 118,096,279.20 and 38,327,908.80

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Solution

The fourth proportional to 78,716,107.20, 118,096,279.20 and 38,327,908.80 is: 57,502,632.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,716,107.20 : 118,096,279.20 = 38,327,908.80 : x
  2. Step 2: Convert to fraction form
    78,716,107.20/118,096,279.20 = 38,327,908.80/x
  3. Step 3: Cross multiply
    78,716,107.20x = 118,096,279.20 × 38,327,908.80
  4. Step 4: Simplify right side
    78,716,107.20x = 4,526,383,418,796,937
  5. Step 5: Solve for x
    x = 4,526,383,418,796,937/78,716,107.20
  6. Step 6: Final answer
    x = 57,502,632.94

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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.