Home / 12,298,364.60-18,455,420.10-7,180,784.60

Finding the Fourth Proportional to 12,298,364.60, 18,455,420.10 and 7,180,784.60

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Solution

The fourth proportional to 12,298,364.60, 18,455,420.10 and 7,180,784.60 is: 10,775,773.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,298,364.60 : 18,455,420.10 = 7,180,784.60 : x
  2. Step 2: Convert to fraction form
    12,298,364.60/18,455,420.10 = 7,180,784.60/x
  3. Step 3: Cross multiply
    12,298,364.60x = 18,455,420.10 × 7,180,784.60
  4. Step 4: Simplify right side
    12,298,364.60x = 132,524,396,440,610.47
  5. Step 5: Solve for x
    x = 132,524,396,440,610.47/12,298,364.60
  6. Step 6: Final answer
    x = 10,775,773.91

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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.