Home / 3,120,319.80-4,680,479.70-2,642,022.90

Finding the Fourth Proportional to 3,120,319.80, 4,680,479.70 and 2,642,022.90

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Solution

The fourth proportional to 3,120,319.80, 4,680,479.70 and 2,642,022.90 is: 3,963,034.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,120,319.80 : 4,680,479.70 = 2,642,022.90 : x
  2. Step 2: Convert to fraction form
    3,120,319.80/4,680,479.70 = 2,642,022.90/x
  3. Step 3: Cross multiply
    3,120,319.80x = 4,680,479.70 × 2,642,022.90
  4. Step 4: Simplify right side
    3,120,319.80x = 12,365,934,550,385.13
  5. Step 5: Solve for x
    x = 12,365,934,550,385.13/3,120,319.80
  6. Step 6: Final answer
    x = 3,963,034.35

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1.5x scale

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.