Home / 762,888,513.38-1,144,503,356.06-278,214,321.38

Finding the Fourth Proportional to 762,888,513.38, 1,144,503,356.06 and 278,214,321.38

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Solution

The fourth proportional to 762,888,513.38, 1,144,503,356.06 and 278,214,321.38 is: 417,383,692.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    762,888,513.38 : 1,144,503,356.06 = 278,214,321.38 : x
  2. Step 2: Convert to fraction form
    762,888,513.38/1,144,503,356.06 = 278,214,321.38/x
  3. Step 3: Cross multiply
    762,888,513.38x = 1,144,503,356.06 × 278,214,321.38
  4. Step 4: Simplify right side
    762,888,513.38x = 318,417,224,518,338,432
  5. Step 5: Solve for x
    x = 318,417,224,518,338,432/762,888,513.38
  6. Step 6: Final answer
    x = 417,383,692.29

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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.