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Finding the Fourth Proportional to 617,462,419.60, 925,343,323.80 and 409,609,939.60

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Solution

The fourth proportional to 617,462,419.60, 925,343,323.80 and 409,609,939.60 is: 613,850,836.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,462,419.60 : 925,343,323.80 = 409,609,939.60 : x
  2. Step 2: Convert to fraction form
    617,462,419.60/925,343,323.80 = 409,609,939.60/x
  3. Step 3: Cross multiply
    617,462,419.60x = 925,343,323.80 × 409,609,939.60
  4. Step 4: Simplify right side
    617,462,419.60x = 379,029,822,970,981,248
  5. Step 5: Solve for x
    x = 379,029,822,970,981,248/617,462,419.60
  6. Step 6: Final answer
    x = 613,850,836.81

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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.