Home / 20,773,966.80-31,160,950.20-11,816,014.80

Finding the Fourth Proportional to 20,773,966.80, 31,160,950.20 and 11,816,014.80

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Solution

The fourth proportional to 20,773,966.80, 31,160,950.20 and 11,816,014.80 is: 17,724,022.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,773,966.80 : 31,160,950.20 = 11,816,014.80 : x
  2. Step 2: Convert to fraction form
    20,773,966.80/31,160,950.20 = 11,816,014.80/x
  3. Step 3: Cross multiply
    20,773,966.80x = 31,160,950.20 × 11,816,014.80
  4. Step 4: Simplify right side
    20,773,966.80x = 368,198,248,745,263
  5. Step 5: Solve for x
    x = 368,198,248,745,263/20,773,966.80
  6. Step 6: Final answer
    x = 17,724,022.20

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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.