Home / 20,755,656.60-28,642,861.68-11,588,627.40

Finding the Fourth Proportional to 20,755,656.60, 28,642,861.68 and 11,588,627.40

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Solution

The fourth proportional to 20,755,656.60, 28,642,861.68 and 11,588,627.40 is: 15,992,336.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,755,656.60 : 28,642,861.68 = 11,588,627.40 : x
  2. Step 2: Convert to fraction form
    20,755,656.60/28,642,861.68 = 11,588,627.40/x
  3. Step 3: Cross multiply
    20,755,656.60x = 28,642,861.68 × 11,588,627.40
  4. Step 4: Simplify right side
    20,755,656.60x = 331,931,451,679,258.06
  5. Step 5: Solve for x
    x = 331,931,451,679,258.06/20,755,656.60
  6. Step 6: Final answer
    x = 15,992,336.84

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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.