Home / 64,338,047.20-96,521,067.60-21,199,909.60

Finding the Fourth Proportional to 64,338,047.20, 96,521,067.60 and 21,199,909.60

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Solution

The fourth proportional to 64,338,047.20, 96,521,067.60 and 21,199,909.60 is: 31,804,476.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,338,047.20 : 96,521,067.60 = 21,199,909.60 : x
  2. Step 2: Convert to fraction form
    64,338,047.20/96,521,067.60 = 21,199,909.60/x
  3. Step 3: Cross multiply
    64,338,047.20x = 96,521,067.60 × 21,199,909.60
  4. Step 4: Simplify right side
    64,338,047.20x = 2,046,237,907,615,489
  5. Step 5: Solve for x
    x = 2,046,237,907,615,489/64,338,047.20
  6. Step 6: Final answer
    x = 31,804,476.46

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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.