Home / 523,328,822.41-722,198,617.72-288,387,890.22

Finding the Fourth Proportional to 523,328,822.41, 722,198,617.72 and 288,387,890.22

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Solution

The fourth proportional to 523,328,822.41, 722,198,617.72 and 288,387,890.22 is: 397,977,957.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    523,328,822.41 : 722,198,617.72 = 288,387,890.22 : x
  2. Step 2: Convert to fraction form
    523,328,822.41/722,198,617.72 = 288,387,890.22/x
  3. Step 3: Cross multiply
    523,328,822.41x = 722,198,617.72 × 288,387,890.22
  4. Step 4: Simplify right side
    523,328,822.41x = 208,273,335,686,051,136
  5. Step 5: Solve for x
    x = 208,273,335,686,051,136/523,328,822.41
  6. Step 6: Final answer
    x = 397,977,957.20

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1.5x scale

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.