Home / 21,977,989.20-32,903,998.20-21,348,133.20

Finding the Fourth Proportional to 21,977,989.20, 32,903,998.20 and 21,348,133.20

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Solution

The fourth proportional to 21,977,989.20, 32,903,998.20 and 21,348,133.20 is: 31,961,019.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,977,989.20 : 32,903,998.20 = 21,348,133.20 : x
  2. Step 2: Convert to fraction form
    21,977,989.20/32,903,998.20 = 21,348,133.20/x
  3. Step 3: Cross multiply
    21,977,989.20x = 32,903,998.20 × 21,348,133.20
  4. Step 4: Simplify right side
    21,977,989.20x = 702,438,936,386,160.25
  5. Step 5: Solve for x
    x = 702,438,936,386,160.25/21,977,989.20
  6. Step 6: Final answer
    x = 31,961,019.27

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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.