Home / 858,276,101.60-1,287,414,152.40-443,752,121.60

Finding the Fourth Proportional to 858,276,101.60, 1,287,414,152.40 and 443,752,121.60

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Solution

The fourth proportional to 858,276,101.60, 1,287,414,152.40 and 443,752,121.60 is: 665,628,182.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,276,101.60 : 1,287,414,152.40 = 443,752,121.60 : x
  2. Step 2: Convert to fraction form
    858,276,101.60/1,287,414,152.40 = 443,752,121.60/x
  3. Step 3: Cross multiply
    858,276,101.60x = 1,287,414,152.40 × 443,752,121.60
  4. Step 4: Simplify right side
    858,276,101.60x = 571,292,761,505,365,824
  5. Step 5: Solve for x
    x = 571,292,761,505,365,824/858,276,101.60
  6. Step 6: Final answer
    x = 665,628,182.40

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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.