Home / 399,051,699.53-550,950,467.22-357,163,224.66

Finding the Fourth Proportional to 399,051,699.53, 550,950,467.22 and 357,163,224.66

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Solution

The fourth proportional to 399,051,699.53, 550,950,467.22 and 357,163,224.66 is: 493,117,171.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,051,699.53 : 550,950,467.22 = 357,163,224.66 : x
  2. Step 2: Convert to fraction form
    399,051,699.53/550,950,467.22 = 357,163,224.66/x
  3. Step 3: Cross multiply
    399,051,699.53x = 550,950,467.22 × 357,163,224.66
  4. Step 4: Simplify right side
    399,051,699.53x = 196,779,245,500,228,864
  5. Step 5: Solve for x
    x = 196,779,245,500,228,864/399,051,699.53
  6. Step 6: Final answer
    x = 493,117,171.87

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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.