Home / 378,993,260.40-568,755,311.40-243,009,337.20

Finding the Fourth Proportional to 378,993,260.40, 568,755,311.40 and 243,009,337.20

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Solution

The fourth proportional to 378,993,260.40, 568,755,311.40 and 243,009,337.20 is: 364,684,192.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,993,260.40 : 568,755,311.40 = 243,009,337.20 : x
  2. Step 2: Convert to fraction form
    378,993,260.40/568,755,311.40 = 243,009,337.20/x
  3. Step 3: Cross multiply
    378,993,260.40x = 568,755,311.40 × 243,009,337.20
  4. Step 4: Simplify right side
    378,993,260.40x = 138,212,851,252,293,584
  5. Step 5: Solve for x
    x = 138,212,851,252,293,584/378,993,260.40
  6. Step 6: Final answer
    x = 364,684,192.82

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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.