Home / 521,935,771.40-782,386,521.82-245,091,406.94

Finding the Fourth Proportional to 521,935,771.40, 782,386,521.82 and 245,091,406.94

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Solution

The fourth proportional to 521,935,771.40, 782,386,521.82 and 245,091,406.94 is: 367,394,273.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,935,771.40 : 782,386,521.82 = 245,091,406.94 : x
  2. Step 2: Convert to fraction form
    521,935,771.40/782,386,521.82 = 245,091,406.94/x
  3. Step 3: Cross multiply
    521,935,771.40x = 782,386,521.82 × 245,091,406.94
  4. Step 4: Simplify right side
    521,935,771.40x = 191,756,213,403,756,832
  5. Step 5: Solve for x
    x = 191,756,213,403,756,832/521,935,771.40
  6. Step 6: Final answer
    x = 367,394,273.23

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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.