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Finding the Fourth Proportional to 343,542,500.80, 479,939,134.40 and 343,542,500.80

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Solution

The fourth proportional to 343,542,500.80, 479,939,134.40 and 343,542,500.80 is: 479,939,134.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,542,500.80 : 479,939,134.40 = 343,542,500.80 : x
  2. Step 2: Convert to fraction form
    343,542,500.80/479,939,134.40 = 343,542,500.80/x
  3. Step 3: Cross multiply
    343,542,500.80x = 479,939,134.40 × 343,542,500.80
  4. Step 4: Simplify right side
    343,542,500.80x = 164,879,490,463,563,296
  5. Step 5: Solve for x
    x = 164,879,490,463,563,296/343,542,500.80
  6. Step 6: Final answer
    x = 479,939,134.40

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.