Home / 12,387,121.40-18,580,682.10-3,289,201.40

Finding the Fourth Proportional to 12,387,121.40, 18,580,682.10 and 3,289,201.40

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Solution

The fourth proportional to 12,387,121.40, 18,580,682.10 and 3,289,201.40 is: 4,933,802.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,387,121.40 : 18,580,682.10 = 3,289,201.40 : x
  2. Step 2: Convert to fraction form
    12,387,121.40/18,580,682.10 = 3,289,201.40/x
  3. Step 3: Cross multiply
    12,387,121.40x = 18,580,682.10 × 3,289,201.40
  4. Step 4: Simplify right side
    12,387,121.40x = 61,115,605,576,274.95
  5. Step 5: Solve for x
    x = 61,115,605,576,274.95/12,387,121.40
  6. Step 6: Final answer
    x = 4,933,802.10

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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.