Home / 21,186,182.80-31,783,421.40-9,055,622.80

Finding the Fourth Proportional to 21,186,182.80, 31,783,421.40 and 9,055,622.80

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Solution

The fourth proportional to 21,186,182.80, 31,783,421.40 and 9,055,622.80 is: 13,585,206.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,186,182.80 : 31,783,421.40 = 9,055,622.80 : x
  2. Step 2: Convert to fraction form
    21,186,182.80/31,783,421.40 = 9,055,622.80/x
  3. Step 3: Cross multiply
    21,186,182.80x = 31,783,421.40 × 9,055,622.80
  4. Step 4: Simplify right side
    21,186,182.80x = 287,818,675,491,847.94
  5. Step 5: Solve for x
    x = 287,818,675,491,847.94/21,186,182.80
  6. Step 6: Final answer
    x = 13,585,206.84

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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.