Home / 20,833,116.40-31,231,012.20-13,648,092.40

Finding the Fourth Proportional to 20,833,116.40, 31,231,012.20 and 13,648,092.40

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Solution

The fourth proportional to 20,833,116.40, 31,231,012.20 and 13,648,092.40 is: 20,459,912.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,833,116.40 : 31,231,012.20 = 13,648,092.40 : x
  2. Step 2: Convert to fraction form
    20,833,116.40/31,231,012.20 = 13,648,092.40/x
  3. Step 3: Cross multiply
    20,833,116.40x = 31,231,012.20 × 13,648,092.40
  4. Step 4: Simplify right side
    20,833,116.40x = 426,243,740,251,127.31
  5. Step 5: Solve for x
    x = 426,243,740,251,127.31/20,833,116.40
  6. Step 6: Final answer
    x = 20,459,912.58

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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.