Home / 6,420,814.36-8,860,488.69-3,520,141.63

Finding the Fourth Proportional to 6,420,814.36, 8,860,488.69 and 3,520,141.63

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Solution

The fourth proportional to 6,420,814.36, 8,860,488.69 and 3,520,141.63 is: 4,857,666.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,420,814.36 : 8,860,488.69 = 3,520,141.63 : x
  2. Step 2: Convert to fraction form
    6,420,814.36/8,860,488.69 = 3,520,141.63/x
  3. Step 3: Cross multiply
    6,420,814.36x = 8,860,488.69 × 3,520,141.63
  4. Step 4: Simplify right side
    6,420,814.36x = 31,190,175,099,813.16
  5. Step 5: Solve for x
    x = 31,190,175,099,813.16/6,420,814.36
  6. Step 6: Final answer
    x = 4,857,666.54

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.