Home / 8,520,512.32-12,780,881.46-2,840,738.45

Finding the Fourth Proportional to 8,520,512.32, 12,780,881.46 and 2,840,738.45

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Solution

The fourth proportional to 8,520,512.32, 12,780,881.46 and 2,840,738.45 is: 4,261,145.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,520,512.32 : 12,780,881.46 = 2,840,738.45 : x
  2. Step 2: Convert to fraction form
    8,520,512.32/12,780,881.46 = 2,840,738.45/x
  3. Step 3: Cross multiply
    8,520,512.32x = 12,780,881.46 × 2,840,738.45
  4. Step 4: Simplify right side
    8,520,512.32x = 36,307,141,388,314.14
  5. Step 5: Solve for x
    x = 36,307,141,388,314.14/8,520,512.32
  6. Step 6: Final answer
    x = 4,261,145.34

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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.