Home / 12,120,884.16-18,164,004-8,900,748.48

Finding the Fourth Proportional to 12,120,884.16, 18,164,004 and 8,900,748.48

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Solution

The fourth proportional to 12,120,884.16, 18,164,004 and 8,900,748.48 is: 13,338,402.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,120,884.16 : 18,164,004 = 8,900,748.48 : x
  2. Step 2: Convert to fraction form
    12,120,884.16/18,164,004 = 8,900,748.48/x
  3. Step 3: Cross multiply
    12,120,884.16x = 18,164,004 × 8,900,748.48
  4. Step 4: Simplify right side
    12,120,884.16x = 161,673,230,993,713.94
  5. Step 5: Solve for x
    x = 161,673,230,993,713.94/12,120,884.16
  6. Step 6: Final answer
    x = 13,338,402.45

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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.