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Finding the Fourth Proportional to 13,608,901.80, 20,413,352.70 and 13,514,423.40

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Solution

The fourth proportional to 13,608,901.80, 20,413,352.70 and 13,514,423.40 is: 20,271,635.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,608,901.80 : 20,413,352.70 = 13,514,423.40 : x
  2. Step 2: Convert to fraction form
    13,608,901.80/20,413,352.70 = 13,514,423.40/x
  3. Step 3: Cross multiply
    13,608,901.80x = 20,413,352.70 × 13,514,423.40
  4. Step 4: Simplify right side
    13,608,901.80x = 275,874,691,401,333.19
  5. Step 5: Solve for x
    x = 275,874,691,401,333.19/13,608,901.80
  6. Step 6: Final answer
    x = 20,271,635.10

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1.5x scale

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.