Home / 9,120,179.13-12,586,007.12-4,990,572.05

Finding the Fourth Proportional to 9,120,179.13, 12,586,007.12 and 4,990,572.05

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Solution

The fourth proportional to 9,120,179.13, 12,586,007.12 and 4,990,572.05 is: 6,887,076.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,120,179.13 : 12,586,007.12 = 4,990,572.05 : x
  2. Step 2: Convert to fraction form
    9,120,179.13/12,586,007.12 = 4,990,572.05/x
  3. Step 3: Cross multiply
    9,120,179.13x = 12,586,007.12 × 4,990,572.05
  4. Step 4: Simplify right side
    9,120,179.13x = 62,811,375,354,172.99
  5. Step 5: Solve for x
    x = 62,811,375,354,172.99/9,120,179.13
  6. Step 6: Final answer
    x = 6,887,076.94

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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.