Home / 18,686,800.20-28,030,200.30-18,434,857.80

Finding the Fourth Proportional to 18,686,800.20, 28,030,200.30 and 18,434,857.80

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Solution

The fourth proportional to 18,686,800.20, 28,030,200.30 and 18,434,857.80 is: 27,652,286.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,686,800.20 : 28,030,200.30 = 18,434,857.80 : x
  2. Step 2: Convert to fraction form
    18,686,800.20/28,030,200.30 = 18,434,857.80/x
  3. Step 3: Cross multiply
    18,686,800.20x = 28,030,200.30 × 18,434,857.80
  4. Step 4: Simplify right side
    18,686,800.20x = 516,732,756,636,017.38
  5. Step 5: Solve for x
    x = 516,732,756,636,017.38/18,686,800.20
  6. Step 6: Final answer
    x = 27,652,286.70

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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.