Home / 553,203,734.20-829,805,601.30-521,458,991.80

Finding the Fourth Proportional to 553,203,734.20, 829,805,601.30 and 521,458,991.80

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Solution

The fourth proportional to 553,203,734.20, 829,805,601.30 and 521,458,991.80 is: 782,188,487.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,203,734.20 : 829,805,601.30 = 521,458,991.80 : x
  2. Step 2: Convert to fraction form
    553,203,734.20/829,805,601.30 = 521,458,991.80/x
  3. Step 3: Cross multiply
    553,203,734.20x = 829,805,601.30 × 521,458,991.80
  4. Step 4: Simplify right side
    553,203,734.20x = 432,709,592,243,890,752
  5. Step 5: Solve for x
    x = 432,709,592,243,890,752/553,203,734.20
  6. Step 6: Final answer
    x = 782,188,487.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.