Home / 338,708,938.03-508,002,800.72-215,521,327.94

Finding the Fourth Proportional to 338,708,938.03, 508,002,800.72 and 215,521,327.94

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Solution

The fourth proportional to 338,708,938.03, 508,002,800.72 and 215,521,327.94 is: 323,243,427.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,708,938.03 : 508,002,800.72 = 215,521,327.94 : x
  2. Step 2: Convert to fraction form
    338,708,938.03/508,002,800.72 = 215,521,327.94/x
  3. Step 3: Cross multiply
    338,708,938.03x = 508,002,800.72 × 215,521,327.94
  4. Step 4: Simplify right side
    338,708,938.03x = 109,485,438,204,795,968
  5. Step 5: Solve for x
    x = 109,485,438,204,795,968/338,708,938.03
  6. Step 6: Final answer
    x = 323,243,427.95

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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.