Home / 10,920,859.20-16,393,730.40-6,435,662.40

Finding the Fourth Proportional to 10,920,859.20, 16,393,730.40 and 6,435,662.40

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Solution

The fourth proportional to 10,920,859.20, 16,393,730.40 and 6,435,662.40 is: 9,660,825.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,920,859.20 : 16,393,730.40 = 6,435,662.40 : x
  2. Step 2: Convert to fraction form
    10,920,859.20/16,393,730.40 = 6,435,662.40/x
  3. Step 3: Cross multiply
    10,920,859.20x = 16,393,730.40 × 6,435,662.40
  4. Step 4: Simplify right side
    10,920,859.20x = 105,504,514,331,016.97
  5. Step 5: Solve for x
    x = 105,504,514,331,016.97/10,920,859.20
  6. Step 6: Final answer
    x = 9,660,825.43

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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.