Home / 347,738,631.80-521,607,947.70-311,458,926.20

Finding the Fourth Proportional to 347,738,631.80, 521,607,947.70 and 311,458,926.20

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Solution

The fourth proportional to 347,738,631.80, 521,607,947.70 and 311,458,926.20 is: 467,188,389.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,738,631.80 : 521,607,947.70 = 311,458,926.20 : x
  2. Step 2: Convert to fraction form
    347,738,631.80/521,607,947.70 = 311,458,926.20/x
  3. Step 3: Cross multiply
    347,738,631.80x = 521,607,947.70 × 311,458,926.20
  4. Step 4: Simplify right side
    347,738,631.80x = 162,459,451,288,027,744
  5. Step 5: Solve for x
    x = 162,459,451,288,027,744/347,738,631.80
  6. Step 6: Final answer
    x = 467,188,389.30

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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.