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Finding the Fourth Proportional to 27,648,015.40, 41,472,023.10 and 20,929,551.40

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Solution

The fourth proportional to 27,648,015.40, 41,472,023.10 and 20,929,551.40 is: 31,394,327.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,648,015.40 : 41,472,023.10 = 20,929,551.40 : x
  2. Step 2: Convert to fraction form
    27,648,015.40/41,472,023.10 = 20,929,551.40/x
  3. Step 3: Cross multiply
    27,648,015.40x = 41,472,023.10 × 20,929,551.40
  4. Step 4: Simplify right side
    27,648,015.40x = 867,990,839,133,437.25
  5. Step 5: Solve for x
    x = 867,990,839,133,437.25/27,648,015.40
  6. Step 6: Final answer
    x = 31,394,327.10

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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.