Home / 88,579,725.40-132,869,588.10-81,777,280.60

Finding the Fourth Proportional to 88,579,725.40, 132,869,588.10 and 81,777,280.60

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Solution

The fourth proportional to 88,579,725.40, 132,869,588.10 and 81,777,280.60 is: 122,665,920.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,579,725.40 : 132,869,588.10 = 81,777,280.60 : x
  2. Step 2: Convert to fraction form
    88,579,725.40/132,869,588.10 = 81,777,280.60/x
  3. Step 3: Cross multiply
    88,579,725.40x = 132,869,588.10 × 81,777,280.60
  4. Step 4: Simplify right side
    88,579,725.40x = 10,865,713,589,260,120
  5. Step 5: Solve for x
    x = 10,865,713,589,260,120/88,579,725.40
  6. Step 6: Final answer
    x = 122,665,920.90

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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.