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Finding the Fourth Proportional to 374,463,902.40, 560,600,992.80 and 266,968,478.40

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Solution

The fourth proportional to 374,463,902.40, 560,600,992.80 and 266,968,478.40 is: 399,672,152.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,463,902.40 : 560,600,992.80 = 266,968,478.40 : x
  2. Step 2: Convert to fraction form
    374,463,902.40/560,600,992.80 = 266,968,478.40/x
  3. Step 3: Cross multiply
    374,463,902.40x = 560,600,992.80 × 266,968,478.40
  4. Step 4: Simplify right side
    374,463,902.40x = 149,662,794,037,345,344
  5. Step 5: Solve for x
    x = 149,662,794,037,345,344/374,463,902.40
  6. Step 6: Final answer
    x = 399,672,152.85

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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.