Home / 920,702,122.07-1,380,122,607.31-396,413,209.85

Finding the Fourth Proportional to 920,702,122.07, 1,380,122,607.31 and 396,413,209.85

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Solution

The fourth proportional to 920,702,122.07, 1,380,122,607.31 and 396,413,209.85 is: 594,219,150.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,702,122.07 : 1,380,122,607.31 = 396,413,209.85 : x
  2. Step 2: Convert to fraction form
    920,702,122.07/1,380,122,607.31 = 396,413,209.85/x
  3. Step 3: Cross multiply
    920,702,122.07x = 1,380,122,607.31 × 396,413,209.85
  4. Step 4: Simplify right side
    920,702,122.07x = 547,098,832,741,425,536
  5. Step 5: Solve for x
    x = 547,098,832,741,425,536/920,702,122.07
  6. Step 6: Final answer
    x = 594,219,150.40

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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.