Home / 72,845,076.60-109,265,087.70-18,258,139.80

Finding the Fourth Proportional to 72,845,076.60, 109,265,087.70 and 18,258,139.80

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Solution

The fourth proportional to 72,845,076.60, 109,265,087.70 and 18,258,139.80 is: 27,386,576.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,845,076.60 : 109,265,087.70 = 18,258,139.80 : x
  2. Step 2: Convert to fraction form
    72,845,076.60/109,265,087.70 = 18,258,139.80/x
  3. Step 3: Cross multiply
    72,845,076.60x = 109,265,087.70 × 18,258,139.80
  4. Step 4: Simplify right side
    72,845,076.60x = 1,994,977,246,485,860.50
  5. Step 5: Solve for x
    x = 1,994,977,246,485,860.50/72,845,076.60
  6. Step 6: Final answer
    x = 27,386,576.27

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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.