Home / 354,294,997.80-531,442,496.70-328,466,965.20

Finding the Fourth Proportional to 354,294,997.80, 531,442,496.70 and 328,466,965.20

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Solution

The fourth proportional to 354,294,997.80, 531,442,496.70 and 328,466,965.20 is: 492,700,447.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,294,997.80 : 531,442,496.70 = 328,466,965.20 : x
  2. Step 2: Convert to fraction form
    354,294,997.80/531,442,496.70 = 328,466,965.20/x
  3. Step 3: Cross multiply
    354,294,997.80x = 531,442,496.70 × 328,466,965.20
  4. Step 4: Simplify right side
    354,294,997.80x = 174,561,304,069,360,000
  5. Step 5: Solve for x
    x = 174,561,304,069,360,000/354,294,997.80
  6. Step 6: Final answer
    x = 492,700,447.80

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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.