Home / 268,100,900.80-402,151,367.40-86,348,078.80

Finding the Fourth Proportional to 268,100,900.80, 402,151,367.40 and 86,348,078.80

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Solution

The fourth proportional to 268,100,900.80, 402,151,367.40 and 86,348,078.80 is: 129,522,123.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,100,900.80 : 402,151,367.40 = 86,348,078.80 : x
  2. Step 2: Convert to fraction form
    268,100,900.80/402,151,367.40 = 86,348,078.80/x
  3. Step 3: Cross multiply
    268,100,900.80x = 402,151,367.40 × 86,348,078.80
  4. Step 4: Simplify right side
    268,100,900.80x = 34,724,997,961,782,948
  5. Step 5: Solve for x
    x = 34,724,997,961,782,948/268,100,900.80
  6. Step 6: Final answer
    x = 129,522,123.42

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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.