Home / 520,998,919.76-780,476,700.48-302,189,569.76

Finding the Fourth Proportional to 520,998,919.76, 780,476,700.48 and 302,189,569.76

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Solution

The fourth proportional to 520,998,919.76, 780,476,700.48 and 302,189,569.76 is: 452,691,760.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,998,919.76 : 780,476,700.48 = 302,189,569.76 : x
  2. Step 2: Convert to fraction form
    520,998,919.76/780,476,700.48 = 302,189,569.76/x
  3. Step 3: Cross multiply
    520,998,919.76x = 780,476,700.48 × 302,189,569.76
  4. Step 4: Simplify right side
    520,998,919.76x = 235,851,918,325,755,584
  5. Step 5: Solve for x
    x = 235,851,918,325,755,584/520,998,919.76
  6. Step 6: Final answer
    x = 452,691,760.73

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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.