Home / 21,666,987.60-32,508,775.80-21,326,917.20

Finding the Fourth Proportional to 21,666,987.60, 32,508,775.80 and 21,326,917.20

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Solution

The fourth proportional to 21,666,987.60, 32,508,775.80 and 21,326,917.20 is: 31,998,540.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,666,987.60 : 32,508,775.80 = 21,326,917.20 : x
  2. Step 2: Convert to fraction form
    21,666,987.60/32,508,775.80 = 21,326,917.20/x
  3. Step 3: Cross multiply
    21,666,987.60x = 32,508,775.80 × 21,326,917.20
  4. Step 4: Simplify right side
    21,666,987.60x = 693,311,969,759,963.75
  5. Step 5: Solve for x
    x = 693,311,969,759,963.75/21,666,987.60
  6. Step 6: Final answer
    x = 31,998,540.02

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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.