Home / 523,328,851.94-722,198,658.47-288,387,919.76

Finding the Fourth Proportional to 523,328,851.94, 722,198,658.47 and 288,387,919.76

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Solution

The fourth proportional to 523,328,851.94, 722,198,658.47 and 288,387,919.76 is: 397,977,997.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    523,328,851.94 : 722,198,658.47 = 288,387,919.76 : x
  2. Step 2: Convert to fraction form
    523,328,851.94/722,198,658.47 = 288,387,919.76/x
  3. Step 3: Cross multiply
    523,328,851.94x = 722,198,658.47 × 288,387,919.76
  4. Step 4: Simplify right side
    523,328,851.94x = 208,273,368,764,573,088
  5. Step 5: Solve for x
    x = 208,273,368,764,573,088/523,328,851.94
  6. Step 6: Final answer
    x = 397,977,997.95

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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.