Home / 639,593,163.12-959,389,623.64-348,704,900.40

Finding the Fourth Proportional to 639,593,163.12, 959,389,623.64 and 348,704,900.40

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Solution

The fourth proportional to 639,593,163.12, 959,389,623.64 and 348,704,900.40 is: 523,057,284.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,593,163.12 : 959,389,623.64 = 348,704,900.40 : x
  2. Step 2: Convert to fraction form
    639,593,163.12/959,389,623.64 = 348,704,900.40/x
  3. Step 3: Cross multiply
    639,593,163.12x = 959,389,623.64 × 348,704,900.40
  4. Step 4: Simplify right side
    639,593,163.12x = 334,543,863,156,179,648
  5. Step 5: Solve for x
    x = 334,543,863,156,179,648/639,593,163.12
  6. Step 6: Final answer
    x = 523,057,284.61

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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.