Home / 18,793,174.40-28,189,761.60-13,124,470.40

Finding the Fourth Proportional to 18,793,174.40, 28,189,761.60 and 13,124,470.40

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Solution

The fourth proportional to 18,793,174.40, 28,189,761.60 and 13,124,470.40 is: 19,686,705.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,793,174.40 : 28,189,761.60 = 13,124,470.40 : x
  2. Step 2: Convert to fraction form
    18,793,174.40/28,189,761.60 = 13,124,470.40/x
  3. Step 3: Cross multiply
    18,793,174.40x = 28,189,761.60 × 13,124,470.40
  4. Step 4: Simplify right side
    18,793,174.40x = 369,975,691,702,256.69
  5. Step 5: Solve for x
    x = 369,975,691,702,256.69/18,793,174.40
  6. Step 6: Final answer
    x = 19,686,705.60

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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.