Home / 400,112,085.60-599,832,205.20-208,635,861.60

Finding the Fourth Proportional to 400,112,085.60, 599,832,205.20 and 208,635,861.60

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Solution

The fourth proportional to 400,112,085.60, 599,832,205.20 and 208,635,861.60 is: 312,778,627.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,112,085.60 : 599,832,205.20 = 208,635,861.60 : x
  2. Step 2: Convert to fraction form
    400,112,085.60/599,832,205.20 = 208,635,861.60/x
  3. Step 3: Cross multiply
    400,112,085.60x = 599,832,205.20 × 208,635,861.60
  4. Step 4: Simplify right side
    400,112,085.60x = 125,146,508,947,330,000
  5. Step 5: Solve for x
    x = 125,146,508,947,330,000/400,112,085.60
  6. Step 6: Final answer
    x = 312,778,627.42

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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.