Home / 523,328,826.67-722,198,623.58-288,387,894.49

Finding the Fourth Proportional to 523,328,826.67, 722,198,623.58 and 288,387,894.49

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Solution

The fourth proportional to 523,328,826.67, 722,198,623.58 and 288,387,894.49 is: 397,977,963.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    523,328,826.67 : 722,198,623.58 = 288,387,894.49 : x
  2. Step 2: Convert to fraction form
    523,328,826.67/722,198,623.58 = 288,387,894.49/x
  3. Step 3: Cross multiply
    523,328,826.67x = 722,198,623.58 × 288,387,894.49
  4. Step 4: Simplify right side
    523,328,826.67x = 208,273,340,457,812,288
  5. Step 5: Solve for x
    x = 208,273,340,457,812,288/523,328,826.67
  6. Step 6: Final answer
    x = 397,977,963.08

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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.