Home / 13,136,379.84-18,140,723.52-12,420,715.52

Finding the Fourth Proportional to 13,136,379.84, 18,140,723.52 and 12,420,715.52

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Solution

The fourth proportional to 13,136,379.84, 18,140,723.52 and 12,420,715.52 is: 17,152,424.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,136,379.84 : 18,140,723.52 = 12,420,715.52 : x
  2. Step 2: Convert to fraction form
    13,136,379.84/18,140,723.52 = 12,420,715.52/x
  3. Step 3: Cross multiply
    13,136,379.84x = 18,140,723.52 × 12,420,715.52
  4. Step 4: Simplify right side
    13,136,379.84x = 225,320,766,168,893.03
  5. Step 5: Solve for x
    x = 225,320,766,168,893.03/13,136,379.84
  6. Step 6: Final answer
    x = 17,152,424.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.