Home / 21,304,043.80-31,956,065.70-13,226,140.60

Finding the Fourth Proportional to 21,304,043.80, 31,956,065.70 and 13,226,140.60

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Solution

The fourth proportional to 21,304,043.80, 31,956,065.70 and 13,226,140.60 is: 19,839,210.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,304,043.80 : 31,956,065.70 = 13,226,140.60 : x
  2. Step 2: Convert to fraction form
    21,304,043.80/31,956,065.70 = 13,226,140.60/x
  3. Step 3: Cross multiply
    21,304,043.80x = 31,956,065.70 × 13,226,140.60
  4. Step 4: Simplify right side
    21,304,043.80x = 422,655,417,971,037.38
  5. Step 5: Solve for x
    x = 422,655,417,971,037.38/21,304,043.80
  6. Step 6: Final answer
    x = 19,839,210.90

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Similar ratio
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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.