Home / 660,528,228.20-990,540,399.90-200,313,444.20

Finding the Fourth Proportional to 660,528,228.20, 990,540,399.90 and 200,313,444.20

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Solution

The fourth proportional to 660,528,228.20, 990,540,399.90 and 200,313,444.20 is: 300,393,761.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,528,228.20 : 990,540,399.90 = 200,313,444.20 : x
  2. Step 2: Convert to fraction form
    660,528,228.20/990,540,399.90 = 200,313,444.20/x
  3. Step 3: Cross multiply
    660,528,228.20x = 990,540,399.90 × 200,313,444.20
  4. Step 4: Simplify right side
    660,528,228.20x = 198,418,559,123,214,304
  5. Step 5: Solve for x
    x = 198,418,559,123,214,304/660,528,228.20
  6. Step 6: Final answer
    x = 300,393,761.62

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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.