Home / 12,945,261.60-19,420,225.20-5,372,992.80

Finding the Fourth Proportional to 12,945,261.60, 19,420,225.20 and 5,372,992.80

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Solution

The fourth proportional to 12,945,261.60, 19,420,225.20 and 5,372,992.80 is: 8,060,457.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,945,261.60 : 19,420,225.20 = 5,372,992.80 : x
  2. Step 2: Convert to fraction form
    12,945,261.60/19,420,225.20 = 5,372,992.80/x
  3. Step 3: Cross multiply
    12,945,261.60x = 19,420,225.20 × 5,372,992.80
  4. Step 4: Simplify right side
    12,945,261.60x = 104,344,730,173,978.55
  5. Step 5: Solve for x
    x = 104,344,730,173,978.55/12,945,261.60
  6. Step 6: Final answer
    x = 8,060,457.44

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1.5x scale

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.