Home / 439,963,343.70-659,945,015.55-198,098,639.70

Finding the Fourth Proportional to 439,963,343.70, 659,945,015.55 and 198,098,639.70

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Solution

The fourth proportional to 439,963,343.70, 659,945,015.55 and 198,098,639.70 is: 297,147,959.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,963,343.70 : 659,945,015.55 = 198,098,639.70 : x
  2. Step 2: Convert to fraction form
    439,963,343.70/659,945,015.55 = 198,098,639.70/x
  3. Step 3: Cross multiply
    439,963,343.70x = 659,945,015.55 × 198,098,639.70
  4. Step 4: Simplify right side
    439,963,343.70x = 130,734,209,857,250,336
  5. Step 5: Solve for x
    x = 130,734,209,857,250,336/439,963,343.70
  6. Step 6: Final answer
    x = 297,147,959.55

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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.