Home / 18,847,732.92-28,271,673.19-12,456,564.40

Finding the Fourth Proportional to 18,847,732.92, 28,271,673.19 and 12,456,564.40

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Solution

The fourth proportional to 18,847,732.92, 28,271,673.19 and 12,456,564.40 is: 18,684,895.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,847,732.92 : 28,271,673.19 = 12,456,564.40 : x
  2. Step 2: Convert to fraction form
    18,847,732.92/28,271,673.19 = 12,456,564.40/x
  3. Step 3: Cross multiply
    18,847,732.92x = 28,271,673.19 × 12,456,564.40
  4. Step 4: Simplify right side
    18,847,732.92x = 352,167,917,837,898.69
  5. Step 5: Solve for x
    x = 352,167,917,837,898.69/18,847,732.92
  6. Step 6: Final answer
    x = 18,684,895.39

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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.