Home / 10,778,942.80-14,837,185.41-9,399,853.40

Finding the Fourth Proportional to 10,778,942.80, 14,837,185.41 and 9,399,853.40

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Solution

The fourth proportional to 10,778,942.80, 14,837,185.41 and 9,399,853.40 is: 12,938,872.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,778,942.80 : 14,837,185.41 = 9,399,853.40 : x
  2. Step 2: Convert to fraction form
    10,778,942.80/14,837,185.41 = 9,399,853.40/x
  3. Step 3: Cross multiply
    10,778,942.80x = 14,837,185.41 × 9,399,853.40
  4. Step 4: Simplify right side
    10,778,942.80x = 139,467,367,722,618.91
  5. Step 5: Solve for x
    x = 139,467,367,722,618.91/10,778,942.80
  6. Step 6: Final answer
    x = 12,938,872.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.