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Finding the Fourth Proportional to 547,588,507.62, 755,709,216.03 and 309,351,063.86

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Solution

The fourth proportional to 547,588,507.62, 755,709,216.03 and 309,351,063.86 is: 426,925,413.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,588,507.62 : 755,709,216.03 = 309,351,063.86 : x
  2. Step 2: Convert to fraction form
    547,588,507.62/755,709,216.03 = 309,351,063.86/x
  3. Step 3: Cross multiply
    547,588,507.62x = 755,709,216.03 × 309,351,063.86
  4. Step 4: Simplify right side
    547,588,507.62x = 233,779,449,942,361,760
  5. Step 5: Solve for x
    x = 233,779,449,942,361,760/547,588,507.62
  6. Step 6: Final answer
    x = 426,925,413.32

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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.