Home / 20,463,436.80-30,706,214.40-9,105,638.40

Finding the Fourth Proportional to 20,463,436.80, 30,706,214.40 and 9,105,638.40

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Solution

The fourth proportional to 20,463,436.80, 30,706,214.40 and 9,105,638.40 is: 13,663,378.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,463,436.80 : 30,706,214.40 = 9,105,638.40 : x
  2. Step 2: Convert to fraction form
    20,463,436.80/30,706,214.40 = 9,105,638.40/x
  3. Step 3: Cross multiply
    20,463,436.80x = 30,706,214.40 × 9,105,638.40
  4. Step 4: Simplify right side
    20,463,436.80x = 279,599,684,959,272.97
  5. Step 5: Solve for x
    x = 279,599,684,959,272.97/20,463,436.80
  6. Step 6: Final answer
    x = 13,663,378.62

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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.