Home / 78,615,087.60-117,922,631.40-27,491,775.60

Finding the Fourth Proportional to 78,615,087.60, 117,922,631.40 and 27,491,775.60

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Solution

The fourth proportional to 78,615,087.60, 117,922,631.40 and 27,491,775.60 is: 41,237,663.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,615,087.60 : 117,922,631.40 = 27,491,775.60 : x
  2. Step 2: Convert to fraction form
    78,615,087.60/117,922,631.40 = 27,491,775.60/x
  3. Step 3: Cross multiply
    78,615,087.60x = 117,922,631.40 × 27,491,775.60
  4. Step 4: Simplify right side
    78,615,087.60x = 3,241,902,520,610,314
  5. Step 5: Solve for x
    x = 3,241,902,520,610,314/78,615,087.60
  6. Step 6: Final answer
    x = 41,237,663.40

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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.