Home / 21,357,221.76-29,472,787.44-11,567,438.64

Finding the Fourth Proportional to 21,357,221.76, 29,472,787.44 and 11,567,438.64

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Solution

The fourth proportional to 21,357,221.76, 29,472,787.44 and 11,567,438.64 is: 15,962,968.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,357,221.76 : 29,472,787.44 = 11,567,438.64 : x
  2. Step 2: Convert to fraction form
    21,357,221.76/29,472,787.44 = 11,567,438.64/x
  3. Step 3: Cross multiply
    21,357,221.76x = 29,472,787.44 × 11,567,438.64
  4. Step 4: Simplify right side
    21,357,221.76x = 340,924,660,261,962.69
  5. Step 5: Solve for x
    x = 340,924,660,261,962.69/21,357,221.76
  6. Step 6: Final answer
    x = 15,962,968.60

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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.