Home / 8,140,003.20-12,210,004.80-3,888,475.20

Finding the Fourth Proportional to 8,140,003.20, 12,210,004.80 and 3,888,475.20

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Solution

The fourth proportional to 8,140,003.20, 12,210,004.80 and 3,888,475.20 is: 5,832,712.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,140,003.20 : 12,210,004.80 = 3,888,475.20 : x
  2. Step 2: Convert to fraction form
    8,140,003.20/12,210,004.80 = 3,888,475.20/x
  3. Step 3: Cross multiply
    8,140,003.20x = 12,210,004.80 × 3,888,475.20
  4. Step 4: Simplify right side
    8,140,003.20x = 47,478,300,856,680.97
  5. Step 5: Solve for x
    x = 47,478,300,856,680.97/8,140,003.20
  6. Step 6: Final answer
    x = 5,832,712.80

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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.