Home / 13,581,778.90-20,372,668.35-4,485,280.45

Finding the Fourth Proportional to 13,581,778.90, 20,372,668.35 and 4,485,280.45

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Solution

The fourth proportional to 13,581,778.90, 20,372,668.35 and 4,485,280.45 is: 6,727,920.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,581,778.90 : 20,372,668.35 = 4,485,280.45 : x
  2. Step 2: Convert to fraction form
    13,581,778.90/20,372,668.35 = 4,485,280.45/x
  3. Step 3: Cross multiply
    13,581,778.90x = 20,372,668.35 × 4,485,280.45
  4. Step 4: Simplify right side
    13,581,778.90x = 91,377,131,064,588.77
  5. Step 5: Solve for x
    x = 91,377,131,064,588.77/13,581,778.90
  6. Step 6: Final answer
    x = 6,727,920.68

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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.