Home / 328,114,619.20-492,360,885.60-123,789,332.80

Finding the Fourth Proportional to 328,114,619.20, 492,360,885.60 and 123,789,332.80

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Solution

The fourth proportional to 328,114,619.20, 492,360,885.60 and 123,789,332.80 is: 185,755,287.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,114,619.20 : 492,360,885.60 = 123,789,332.80 : x
  2. Step 2: Convert to fraction form
    328,114,619.20/492,360,885.60 = 123,789,332.80/x
  3. Step 3: Cross multiply
    328,114,619.20x = 492,360,885.60 × 123,789,332.80
  4. Step 4: Simplify right side
    328,114,619.20x = 60,949,025,525,241,128
  5. Step 5: Solve for x
    x = 60,949,025,525,241,128/328,114,619.20
  6. Step 6: Final answer
    x = 185,755,287.81

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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.