Home / 18,138,880.20-27,208,320.30-12,476,569.80

Finding the Fourth Proportional to 18,138,880.20, 27,208,320.30 and 12,476,569.80

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Solution

The fourth proportional to 18,138,880.20, 27,208,320.30 and 12,476,569.80 is: 18,714,854.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,138,880.20 : 27,208,320.30 = 12,476,569.80 : x
  2. Step 2: Convert to fraction form
    18,138,880.20/27,208,320.30 = 12,476,569.80/x
  3. Step 3: Cross multiply
    18,138,880.20x = 27,208,320.30 × 12,476,569.80
  4. Step 4: Simplify right side
    18,138,880.20x = 339,466,507,363,707
  5. Step 5: Solve for x
    x = 339,466,507,363,707/18,138,880.20
  6. Step 6: Final answer
    x = 18,714,854.70

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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.