Home / 523,328,834.40-722,198,634.30-288,387,902.22

Finding the Fourth Proportional to 523,328,834.40, 722,198,634.30 and 288,387,902.22

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Solution

The fourth proportional to 523,328,834.40, 722,198,634.30 and 288,387,902.22 is: 397,977,973.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    523,328,834.40 : 722,198,634.30 = 288,387,902.22 : x
  2. Step 2: Convert to fraction form
    523,328,834.40/722,198,634.30 = 288,387,902.22/x
  3. Step 3: Cross multiply
    523,328,834.40x = 722,198,634.30 × 288,387,902.22
  4. Step 4: Simplify right side
    523,328,834.40x = 208,273,349,131,925,952
  5. Step 5: Solve for x
    x = 208,273,349,131,925,952/523,328,834.40
  6. Step 6: Final answer
    x = 397,977,973.77

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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.