Home / 81,395,363.20-122,093,044.80-70,435,868.80

Finding the Fourth Proportional to 81,395,363.20, 122,093,044.80 and 70,435,868.80

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Solution

The fourth proportional to 81,395,363.20, 122,093,044.80 and 70,435,868.80 is: 105,653,803.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,395,363.20 : 122,093,044.80 = 70,435,868.80 : x
  2. Step 2: Convert to fraction form
    81,395,363.20/122,093,044.80 = 70,435,868.80/x
  3. Step 3: Cross multiply
    81,395,363.20x = 122,093,044.80 × 70,435,868.80
  4. Step 4: Simplify right side
    81,395,363.20x = 8,599,729,684,925,322
  5. Step 5: Solve for x
    x = 8,599,729,684,925,322/81,395,363.20
  6. Step 6: Final answer
    x = 105,653,803.20

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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.