Home / 398,946,019.80-598,419,029.70-245,891,011.80

Finding the Fourth Proportional to 398,946,019.80, 598,419,029.70 and 245,891,011.80

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Solution

The fourth proportional to 398,946,019.80, 598,419,029.70 and 245,891,011.80 is: 368,836,517.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,946,019.80 : 598,419,029.70 = 245,891,011.80 : x
  2. Step 2: Convert to fraction form
    398,946,019.80/598,419,029.70 = 245,891,011.80/x
  3. Step 3: Cross multiply
    398,946,019.80x = 598,419,029.70 × 245,891,011.80
  4. Step 4: Simplify right side
    398,946,019.80x = 147,145,860,693,307,264
  5. Step 5: Solve for x
    x = 147,145,860,693,307,264/398,946,019.80
  6. Step 6: Final answer
    x = 368,836,517.70

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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.