Home / 99,586,915.20-149,380,372.80-82,580,803.20

Finding the Fourth Proportional to 99,586,915.20, 149,380,372.80 and 82,580,803.20

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Solution

The fourth proportional to 99,586,915.20, 149,380,372.80 and 82,580,803.20 is: 123,871,204.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,586,915.20 : 149,380,372.80 = 82,580,803.20 : x
  2. Step 2: Convert to fraction form
    99,586,915.20/149,380,372.80 = 82,580,803.20/x
  3. Step 3: Cross multiply
    99,586,915.20x = 149,380,372.80 × 82,580,803.20
  4. Step 4: Simplify right side
    99,586,915.20x = 12,335,951,168,139,434
  5. Step 5: Solve for x
    x = 12,335,951,168,139,434/99,586,915.20
  6. Step 6: Final answer
    x = 123,871,204.80

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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.