Home / 9,120,418.80-12,585,983.76-4,990,433.34

Finding the Fourth Proportional to 9,120,418.80, 12,585,983.76 and 4,990,433.34

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Solution

The fourth proportional to 9,120,418.80, 12,585,983.76 and 4,990,433.34 is: 6,886,691.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,120,418.80 : 12,585,983.76 = 4,990,433.34 : x
  2. Step 2: Convert to fraction form
    9,120,418.80/12,585,983.76 = 4,990,433.34/x
  3. Step 3: Cross multiply
    9,120,418.80x = 12,585,983.76 × 4,990,433.34
  4. Step 4: Simplify right side
    9,120,418.80x = 62,809,512,972,602.55
  5. Step 5: Solve for x
    x = 62,809,512,972,602.55/9,120,418.80
  6. Step 6: Final answer
    x = 6,886,691.76

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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.