Home / 920,049,309.30-1,380,451,877.55-338,062,365.30

Finding the Fourth Proportional to 920,049,309.30, 1,380,451,877.55 and 338,062,365.30

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Solution

The fourth proportional to 920,049,309.30, 1,380,451,877.55 and 338,062,365.30 is: 507,232,408.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,049,309.30 : 1,380,451,877.55 = 338,062,365.30 : x
  2. Step 2: Convert to fraction form
    920,049,309.30/1,380,451,877.55 = 338,062,365.30/x
  3. Step 3: Cross multiply
    920,049,309.30x = 1,380,451,877.55 × 338,062,365.30
  4. Step 4: Simplify right side
    920,049,309.30x = 466,678,826,907,378,944
  5. Step 5: Solve for x
    x = 466,678,826,907,378,944/920,049,309.30
  6. Step 6: Final answer
    x = 507,232,408.30

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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.