Home / 8,485,674.42-12,713,659.47-5,781,220.50

Finding the Fourth Proportional to 8,485,674.42, 12,713,659.47 and 5,781,220.50

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Solution

The fourth proportional to 8,485,674.42, 12,713,659.47 and 5,781,220.50 is: 8,661,712.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,485,674.42 : 12,713,659.47 = 5,781,220.50 : x
  2. Step 2: Convert to fraction form
    8,485,674.42/12,713,659.47 = 5,781,220.50/x
  3. Step 3: Cross multiply
    8,485,674.42x = 12,713,659.47 × 5,781,220.50
  4. Step 4: Simplify right side
    8,485,674.42x = 73,500,468,757,983.14
  5. Step 5: Solve for x
    x = 73,500,468,757,983.14/8,485,674.42
  6. Step 6: Final answer
    x = 8,661,712.10

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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.