Home / 13,888,930.60-20,833,395.90-8,514,159.40

Finding the Fourth Proportional to 13,888,930.60, 20,833,395.90 and 8,514,159.40

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Solution

The fourth proportional to 13,888,930.60, 20,833,395.90 and 8,514,159.40 is: 12,771,239.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,888,930.60 : 20,833,395.90 = 8,514,159.40 : x
  2. Step 2: Convert to fraction form
    13,888,930.60/20,833,395.90 = 8,514,159.40/x
  3. Step 3: Cross multiply
    13,888,930.60x = 20,833,395.90 × 8,514,159.40
  4. Step 4: Simplify right side
    13,888,930.60x = 177,378,853,535,906.47
  5. Step 5: Solve for x
    x = 177,378,853,535,906.47/13,888,930.60
  6. Step 6: Final answer
    x = 12,771,239.10

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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.