Home / 290,332,040.80-435,498,061.20-198,363,733.60

Finding the Fourth Proportional to 290,332,040.80, 435,498,061.20 and 198,363,733.60

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Solution

The fourth proportional to 290,332,040.80, 435,498,061.20 and 198,363,733.60 is: 297,545,600.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,332,040.80 : 435,498,061.20 = 198,363,733.60 : x
  2. Step 2: Convert to fraction form
    290,332,040.80/435,498,061.20 = 198,363,733.60/x
  3. Step 3: Cross multiply
    290,332,040.80x = 435,498,061.20 × 198,363,733.60
  4. Step 4: Simplify right side
    290,332,040.80x = 86,387,021,395,193,296
  5. Step 5: Solve for x
    x = 86,387,021,395,193,296/290,332,040.80
  6. Step 6: Final answer
    x = 297,545,600.40

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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.