Home / 272,931,453.78-409,336,821.60-78,800,658.90

Finding the Fourth Proportional to 272,931,453.78, 409,336,821.60 and 78,800,658.90

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Solution

The fourth proportional to 272,931,453.78, 409,336,821.60 and 78,800,658.90 is: 118,183,561.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,931,453.78 : 409,336,821.60 = 78,800,658.90 : x
  2. Step 2: Convert to fraction form
    272,931,453.78/409,336,821.60 = 78,800,658.90/x
  3. Step 3: Cross multiply
    272,931,453.78x = 409,336,821.60 × 78,800,658.90
  4. Step 4: Simplify right side
    272,931,453.78x = 32,256,011,254,111,756
  5. Step 5: Solve for x
    x = 32,256,011,254,111,756/272,931,453.78
  6. Step 6: Final answer
    x = 118,183,561.50

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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.