Home / 68,098,825.20-102,148,237.80-40,835,901.90

Finding the Fourth Proportional to 68,098,825.20, 102,148,237.80 and 40,835,901.90

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Solution

The fourth proportional to 68,098,825.20, 102,148,237.80 and 40,835,901.90 is: 61,253,852.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,098,825.20 : 102,148,237.80 = 40,835,901.90 : x
  2. Step 2: Convert to fraction form
    68,098,825.20/102,148,237.80 = 40,835,901.90/x
  3. Step 3: Cross multiply
    68,098,825.20x = 102,148,237.80 × 40,835,901.90
  4. Step 4: Simplify right side
    68,098,825.20x = 4,171,315,418,058,671.50
  5. Step 5: Solve for x
    x = 4,171,315,418,058,671.50/68,098,825.20
  6. Step 6: Final answer
    x = 61,253,852.85

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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.