Home / 523,328,830.68-722,198,629.13-288,387,898.50

Finding the Fourth Proportional to 523,328,830.68, 722,198,629.13 and 288,387,898.50

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Solution

The fourth proportional to 523,328,830.68, 722,198,629.13 and 288,387,898.50 is: 397,977,968.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    523,328,830.68 : 722,198,629.13 = 288,387,898.50 : x
  2. Step 2: Convert to fraction form
    523,328,830.68/722,198,629.13 = 288,387,898.50/x
  3. Step 3: Cross multiply
    523,328,830.68x = 722,198,629.13 × 288,387,898.50
  4. Step 4: Simplify right side
    523,328,830.68x = 208,273,344,952,939,648
  5. Step 5: Solve for x
    x = 208,273,344,952,939,648/523,328,830.68
  6. Step 6: Final answer
    x = 397,977,968.62

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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.