Home / 18,811,654.86-28,206,809.73-17,206,746.78

Finding the Fourth Proportional to 18,811,654.86, 28,206,809.73 and 17,206,746.78

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Solution

The fourth proportional to 18,811,654.86, 28,206,809.73 and 17,206,746.78 is: 25,800,358.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,811,654.86 : 28,206,809.73 = 17,206,746.78 : x
  2. Step 2: Convert to fraction form
    18,811,654.86/28,206,809.73 = 17,206,746.78/x
  3. Step 3: Cross multiply
    18,811,654.86x = 28,206,809.73 × 17,206,746.78
  4. Step 4: Simplify right side
    18,811,654.86x = 485,347,432,495,750.19
  5. Step 5: Solve for x
    x = 485,347,432,495,750.19/18,811,654.86
  6. Step 6: Final answer
    x = 25,800,358.13

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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.