Home / 21,791,036.60-30,069,405.15-13,417,076.60

Finding the Fourth Proportional to 21,791,036.60, 30,069,405.15 and 13,417,076.60

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Solution

The fourth proportional to 21,791,036.60, 30,069,405.15 and 13,417,076.60 is: 18,514,195.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,791,036.60 : 30,069,405.15 = 13,417,076.60 : x
  2. Step 2: Convert to fraction form
    21,791,036.60/30,069,405.15 = 13,417,076.60/x
  3. Step 3: Cross multiply
    21,791,036.60x = 30,069,405.15 × 13,417,076.60
  4. Step 4: Simplify right side
    21,791,036.60x = 403,443,512,213,984.44
  5. Step 5: Solve for x
    x = 403,443,512,213,984.44/21,791,036.60
  6. Step 6: Final answer
    x = 18,514,195.52

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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.