Home / 402,022,808.20-603,034,212.30-143,529,905.80

Finding the Fourth Proportional to 402,022,808.20, 603,034,212.30 and 143,529,905.80

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Solution

The fourth proportional to 402,022,808.20, 603,034,212.30 and 143,529,905.80 is: 215,294,858.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,022,808.20 : 603,034,212.30 = 143,529,905.80 : x
  2. Step 2: Convert to fraction form
    402,022,808.20/603,034,212.30 = 143,529,905.80/x
  3. Step 3: Cross multiply
    402,022,808.20x = 603,034,212.30 × 143,529,905.80
  4. Step 4: Simplify right side
    402,022,808.20x = 86,553,443,685,596,208
  5. Step 5: Solve for x
    x = 86,553,443,685,596,208/402,022,808.20
  6. Step 6: Final answer
    x = 215,294,858.70

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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.