Home / 21,303,955.80-31,955,933.70-13,226,052.60

Finding the Fourth Proportional to 21,303,955.80, 31,955,933.70 and 13,226,052.60

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Solution

The fourth proportional to 21,303,955.80, 31,955,933.70 and 13,226,052.60 is: 19,839,078.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,303,955.80 : 31,955,933.70 = 13,226,052.60 : x
  2. Step 2: Convert to fraction form
    21,303,955.80/31,955,933.70 = 13,226,052.60/x
  3. Step 3: Cross multiply
    21,303,955.80x = 31,955,933.70 × 13,226,052.60
  4. Step 4: Simplify right side
    21,303,955.80x = 422,650,859,998,312.62
  5. Step 5: Solve for x
    x = 422,650,859,998,312.62/21,303,955.80
  6. Step 6: Final answer
    x = 19,839,078.90

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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.