Home / 6,420,762.36-8,860,416.80-3,520,089.72

Finding the Fourth Proportional to 6,420,762.36, 8,860,416.80 and 3,520,089.72

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Solution

The fourth proportional to 6,420,762.36, 8,860,416.80 and 3,520,089.72 is: 4,857,594.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,420,762.36 : 8,860,416.80 = 3,520,089.72 : x
  2. Step 2: Convert to fraction form
    6,420,762.36/8,860,416.80 = 3,520,089.72/x
  3. Step 3: Cross multiply
    6,420,762.36x = 8,860,416.80 × 3,520,089.72
  4. Step 4: Simplify right side
    6,420,762.36x = 31,189,462,074,994.85
  5. Step 5: Solve for x
    x = 31,189,462,074,994.85/6,420,762.36
  6. Step 6: Final answer
    x = 4,857,594.83

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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.