Home / 262,656,715.20-393,985,072.80-71,180,491.20

Finding the Fourth Proportional to 262,656,715.20, 393,985,072.80 and 71,180,491.20

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Solution

The fourth proportional to 262,656,715.20, 393,985,072.80 and 71,180,491.20 is: 106,770,736.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,656,715.20 : 393,985,072.80 = 71,180,491.20 : x
  2. Step 2: Convert to fraction form
    262,656,715.20/393,985,072.80 = 71,180,491.20/x
  3. Step 3: Cross multiply
    262,656,715.20x = 393,985,072.80 × 71,180,491.20
  4. Step 4: Simplify right side
    262,656,715.20x = 28,044,051,007,371,760
  5. Step 5: Solve for x
    x = 28,044,051,007,371,760/262,656,715.20
  6. Step 6: Final answer
    x = 106,770,736.80

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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.