Home / 378,534,418.75-568,001,676.87-268,580,681.86

Finding the Fourth Proportional to 378,534,418.75, 568,001,676.87 and 268,580,681.86

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Solution

The fourth proportional to 378,534,418.75, 568,001,676.87 and 268,580,681.86 is: 403,012,962.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,534,418.75 : 568,001,676.87 = 268,580,681.86 : x
  2. Step 2: Convert to fraction form
    378,534,418.75/568,001,676.87 = 268,580,681.86/x
  3. Step 3: Cross multiply
    378,534,418.75x = 568,001,676.87 × 268,580,681.86
  4. Step 4: Simplify right side
    378,534,418.75x = 152,554,277,671,368,000
  5. Step 5: Solve for x
    x = 152,554,277,671,368,000/378,534,418.75
  6. Step 6: Final answer
    x = 403,012,962.93

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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.