Home / 218,820,805.60-328,231,208.40-127,897,592.80

Finding the Fourth Proportional to 218,820,805.60, 328,231,208.40 and 127,897,592.80

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Solution

The fourth proportional to 218,820,805.60, 328,231,208.40 and 127,897,592.80 is: 191,846,389.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,820,805.60 : 328,231,208.40 = 127,897,592.80 : x
  2. Step 2: Convert to fraction form
    218,820,805.60/328,231,208.40 = 127,897,592.80/x
  3. Step 3: Cross multiply
    218,820,805.60x = 328,231,208.40 × 127,897,592.80
  4. Step 4: Simplify right side
    218,820,805.60x = 41,979,981,436,195,136
  5. Step 5: Solve for x
    x = 41,979,981,436,195,136/218,820,805.60
  6. Step 6: Final answer
    x = 191,846,389.20

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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.