Home / 749,205,640.67-1,124,195,956.39-543,638,865.44

Finding the Fourth Proportional to 749,205,640.67, 1,124,195,956.39 and 543,638,865.44

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Solution

The fourth proportional to 749,205,640.67, 1,124,195,956.39 and 543,638,865.44 is: 815,739,472.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    749,205,640.67 : 1,124,195,956.39 = 543,638,865.44 : x
  2. Step 2: Convert to fraction form
    749,205,640.67/1,124,195,956.39 = 543,638,865.44/x
  3. Step 3: Cross multiply
    749,205,640.67x = 1,124,195,956.39 × 543,638,865.44
  4. Step 4: Simplify right side
    749,205,640.67x = 611,156,614,267,558,144
  5. Step 5: Solve for x
    x = 611,156,614,267,558,144/749,205,640.67
  6. Step 6: Final answer
    x = 815,739,472.71

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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.