Home / 20,869,393.25-31,272,164.52-11,155,388.06

Finding the Fourth Proportional to 20,869,393.25, 31,272,164.52 and 11,155,388.06

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Solution

The fourth proportional to 20,869,393.25, 31,272,164.52 and 11,155,388.06 is: 16,716,016.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,869,393.25 : 31,272,164.52 = 11,155,388.06 : x
  2. Step 2: Convert to fraction form
    20,869,393.25/31,272,164.52 = 11,155,388.06/x
  3. Step 3: Cross multiply
    20,869,393.25x = 31,272,164.52 × 11,155,388.06
  4. Step 4: Simplify right side
    20,869,393.25x = 348,853,130,540,402.81
  5. Step 5: Solve for x
    x = 348,853,130,540,402.81/20,869,393.25
  6. Step 6: Final answer
    x = 16,716,016.92

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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.