Home / 18,936,000.70-28,404,001.05-12,133,555.90

Finding the Fourth Proportional to 18,936,000.70, 28,404,001.05 and 12,133,555.90

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Solution

The fourth proportional to 18,936,000.70, 28,404,001.05 and 12,133,555.90 is: 18,200,333.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,936,000.70 : 28,404,001.05 = 12,133,555.90 : x
  2. Step 2: Convert to fraction form
    18,936,000.70/28,404,001.05 = 12,133,555.90/x
  3. Step 3: Cross multiply
    18,936,000.70x = 28,404,001.05 × 12,133,555.90
  4. Step 4: Simplify right side
    18,936,000.70x = 344,641,534,523,833.69
  5. Step 5: Solve for x
    x = 344,641,534,523,833.69/18,936,000.70
  6. Step 6: Final answer
    x = 18,200,333.85

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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.