Home / 4,119,981.80-6,178,223.10-1,990,718.60

Finding the Fourth Proportional to 4,119,981.80, 6,178,223.10 and 1,990,718.60

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Solution

The fourth proportional to 4,119,981.80, 6,178,223.10 and 1,990,718.60 is: 2,985,232.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,119,981.80 : 6,178,223.10 = 1,990,718.60 : x
  2. Step 2: Convert to fraction form
    4,119,981.80/6,178,223.10 = 1,990,718.60/x
  3. Step 3: Cross multiply
    4,119,981.80x = 6,178,223.10 × 1,990,718.60
  4. Step 4: Simplify right side
    4,119,981.80x = 12,299,103,640,119.66
  5. Step 5: Solve for x
    x = 12,299,103,640,119.66/4,119,981.80
  6. Step 6: Final answer
    x = 2,985,232.52

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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.