Home / 21,178,480.20-29,226,884.40-11,886,627.96

Finding the Fourth Proportional to 21,178,480.20, 29,226,884.40 and 11,886,627.96

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Solution

The fourth proportional to 21,178,480.20, 29,226,884.40 and 11,886,627.96 is: 16,403,873.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,178,480.20 : 29,226,884.40 = 11,886,627.96 : x
  2. Step 2: Convert to fraction form
    21,178,480.20/29,226,884.40 = 11,886,627.96/x
  3. Step 3: Cross multiply
    21,178,480.20x = 29,226,884.40 × 11,886,627.96
  4. Step 4: Simplify right side
    21,178,480.20x = 347,409,101,292,727.81
  5. Step 5: Solve for x
    x = 347,409,101,292,727.81/21,178,480.20
  6. Step 6: Final answer
    x = 16,403,873.08

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.