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Finding the Fourth Proportional to 251,420,999.70, 377,131,499.55 and 251,420,999.70

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Solution

The fourth proportional to 251,420,999.70, 377,131,499.55 and 251,420,999.70 is: 377,131,499.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,420,999.70 : 377,131,499.55 = 251,420,999.70 : x
  2. Step 2: Convert to fraction form
    251,420,999.70/377,131,499.55 = 251,420,999.70/x
  3. Step 3: Cross multiply
    251,420,999.70x = 377,131,499.55 × 251,420,999.70
  4. Step 4: Simplify right side
    251,420,999.70x = 94,818,778,635,221,104
  5. Step 5: Solve for x
    x = 94,818,778,635,221,104/251,420,999.70
  6. Step 6: Final answer
    x = 377,131,499.55

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1.5x scale

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.