Home / 521,315,026,269.45-781,550,553,607.11-162,982,551,859.21

Finding the Fourth Proportional to 521,315,026,269.45, 781,550,553,607.11 and 162,982,551,859.21

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Solution

The fourth proportional to 521,315,026,269.45, 781,550,553,607.11 and 162,982,551,859.21 is: 244,341,899,264.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,315,026,269.45 : 781,550,553,607.11 = 162,982,551,859.21 : x
  2. Step 2: Convert to fraction form
    521,315,026,269.45/781,550,553,607.11 = 162,982,551,859.21/x
  3. Step 3: Cross multiply
    521,315,026,269.45x = 781,550,553,607.11 × 162,982,551,859.21
  4. Step 4: Simplify right side
    521,315,026,269.45x = 127,379,103,633,865,076,375,552
  5. Step 5: Solve for x
    x = 127,379,103,633,865,076,375,552/521,315,026,269.45
  6. Step 6: Final answer
    x = 244,341,899,264.63

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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.