Home / 138,895,209.80-208,342,814.70-131,817,321.80

Finding the Fourth Proportional to 138,895,209.80, 208,342,814.70 and 131,817,321.80

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Solution

The fourth proportional to 138,895,209.80, 208,342,814.70 and 131,817,321.80 is: 197,725,982.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,895,209.80 : 208,342,814.70 = 131,817,321.80 : x
  2. Step 2: Convert to fraction form
    138,895,209.80/208,342,814.70 = 131,817,321.80/x
  3. Step 3: Cross multiply
    138,895,209.80x = 208,342,814.70 × 131,817,321.80
  4. Step 4: Simplify right side
    138,895,209.80x = 27,463,191,850,027,668
  5. Step 5: Solve for x
    x = 27,463,191,850,027,668/138,895,209.80
  6. Step 6: Final answer
    x = 197,725,982.70

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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.