Home / 523,328,976.40-722,198,830.80-288,388,044.76

Finding the Fourth Proportional to 523,328,976.40, 722,198,830.80 and 288,388,044.76

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Solution

The fourth proportional to 523,328,976.40, 722,198,830.80 and 288,388,044.76 is: 397,978,170.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    523,328,976.40 : 722,198,830.80 = 288,388,044.76 : x
  2. Step 2: Convert to fraction form
    523,328,976.40/722,198,830.80 = 288,388,044.76/x
  3. Step 3: Cross multiply
    523,328,976.40x = 722,198,830.80 × 288,388,044.76
  4. Step 4: Simplify right side
    523,328,976.40x = 208,273,508,742,370,048
  5. Step 5: Solve for x
    x = 208,273,508,742,370,048/523,328,976.40
  6. Step 6: Final answer
    x = 397,978,170.78

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.