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Finding the Fourth Proportional to 21,803,796.88, 32,720,794.53 and 8,671,867.90

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Solution

The fourth proportional to 21,803,796.88, 32,720,794.53 and 8,671,867.90 is: 13,013,807.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,803,796.88 : 32,720,794.53 = 8,671,867.90 : x
  2. Step 2: Convert to fraction form
    21,803,796.88/32,720,794.53 = 8,671,867.90/x
  3. Step 3: Cross multiply
    21,803,796.88x = 32,720,794.53 × 8,671,867.90
  4. Step 4: Simplify right side
    21,803,796.88x = 283,750,407,747,202.62
  5. Step 5: Solve for x
    x = 283,750,407,747,202.62/21,803,796.88
  6. Step 6: Final answer
    x = 13,013,807.15

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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.