Home / 256,531,869.04-384,930,099.24-120,231,099.76

Finding the Fourth Proportional to 256,531,869.04, 384,930,099.24 and 120,231,099.76

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Solution

The fourth proportional to 256,531,869.04, 384,930,099.24 and 120,231,099.76 is: 180,408,653.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,531,869.04 : 384,930,099.24 = 120,231,099.76 : x
  2. Step 2: Convert to fraction form
    256,531,869.04/384,930,099.24 = 120,231,099.76/x
  3. Step 3: Cross multiply
    256,531,869.04x = 384,930,099.24 × 120,231,099.76
  4. Step 4: Simplify right side
    256,531,869.04x = 46,280,569,162,351,144
  5. Step 5: Solve for x
    x = 46,280,569,162,351,144/256,531,869.04
  6. Step 6: Final answer
    x = 180,408,653.85

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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.