Home / 12,120,909.80-16,727,211.32-6,614,640.05

Finding the Fourth Proportional to 12,120,909.80, 16,727,211.32 and 6,614,640.05

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Solution

The fourth proportional to 12,120,909.80, 16,727,211.32 and 6,614,640.05 is: 9,128,397.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,120,909.80 : 16,727,211.32 = 6,614,640.05 : x
  2. Step 2: Convert to fraction form
    12,120,909.80/16,727,211.32 = 6,614,640.05/x
  3. Step 3: Cross multiply
    12,120,909.80x = 16,727,211.32 × 6,614,640.05
  4. Step 4: Simplify right side
    12,120,909.80x = 110,644,481,922,085.36
  5. Step 5: Solve for x
    x = 110,644,481,922,085.36/12,120,909.80
  6. Step 6: Final answer
    x = 9,128,397.43

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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.