Home / 21,809,871.60-32,651,821.80-13,306,815.60

Finding the Fourth Proportional to 21,809,871.60, 32,651,821.80 and 13,306,815.60

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Solution

The fourth proportional to 21,809,871.60, 32,651,821.80 and 13,306,815.60 is: 19,921,794.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,809,871.60 : 32,651,821.80 = 13,306,815.60 : x
  2. Step 2: Convert to fraction form
    21,809,871.60/32,651,821.80 = 13,306,815.60/x
  3. Step 3: Cross multiply
    21,809,871.60x = 32,651,821.80 × 13,306,815.60
  4. Step 4: Simplify right side
    21,809,871.60x = 434,491,771,696,660.06
  5. Step 5: Solve for x
    x = 434,491,771,696,660.06/21,809,871.60
  6. Step 6: Final answer
    x = 19,921,794.12

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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.