Home / 31,986,191.40-47,884,808.70-21,215,653.80

Finding the Fourth Proportional to 31,986,191.40, 47,884,808.70 and 21,215,653.80

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Solution

The fourth proportional to 31,986,191.40, 47,884,808.70 and 21,215,653.80 is: 31,760,815.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,986,191.40 : 47,884,808.70 = 21,215,653.80 : x
  2. Step 2: Convert to fraction form
    31,986,191.40/47,884,808.70 = 21,215,653.80/x
  3. Step 3: Cross multiply
    31,986,191.40x = 47,884,808.70 × 21,215,653.80
  4. Step 4: Simplify right side
    31,986,191.40x = 1,015,907,523,658,428.12
  5. Step 5: Solve for x
    x = 1,015,907,523,658,428.12/31,986,191.40
  6. Step 6: Final answer
    x = 31,760,815.50

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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.