Home / 401,243,855.32-551,752,989.38-348,228,522.60

Finding the Fourth Proportional to 401,243,855.32, 551,752,989.38 and 348,228,522.60

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Solution

The fourth proportional to 401,243,855.32, 551,752,989.38 and 348,228,522.60 is: 478,851,266.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,243,855.32 : 551,752,989.38 = 348,228,522.60 : x
  2. Step 2: Convert to fraction form
    401,243,855.32/551,752,989.38 = 348,228,522.60/x
  3. Step 3: Cross multiply
    401,243,855.32x = 551,752,989.38 × 348,228,522.60
  4. Step 4: Simplify right side
    401,243,855.32x = 192,136,128,331,930,912
  5. Step 5: Solve for x
    x = 192,136,128,331,930,912/401,243,855.32
  6. Step 6: Final answer
    x = 478,851,266.59

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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.