Home / 12,298,371.60-18,455,430.60-7,180,791.60

Finding the Fourth Proportional to 12,298,371.60, 18,455,430.60 and 7,180,791.60

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Solution

The fourth proportional to 12,298,371.60, 18,455,430.60 and 7,180,791.60 is: 10,775,784.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,298,371.60 : 18,455,430.60 = 7,180,791.60 : x
  2. Step 2: Convert to fraction form
    12,298,371.60/18,455,430.60 = 7,180,791.60/x
  3. Step 3: Cross multiply
    12,298,371.60x = 18,455,430.60 × 7,180,791.60
  4. Step 4: Simplify right side
    12,298,371.60x = 132,524,601,026,862.97
  5. Step 5: Solve for x
    x = 132,524,601,026,862.97/12,298,371.60
  6. Step 6: Final answer
    x = 10,775,784.42

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1.5x scale

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.