Home / 399,049,272.98-550,682,795.12-222,840,364.76

Finding the Fourth Proportional to 399,049,272.98, 550,682,795.12 and 222,840,364.76

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Solution

The fourth proportional to 399,049,272.98, 550,682,795.12 and 222,840,364.76 is: 307,516,798.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,049,272.98 : 550,682,795.12 = 222,840,364.76 : x
  2. Step 2: Convert to fraction form
    399,049,272.98/550,682,795.12 = 222,840,364.76/x
  3. Step 3: Cross multiply
    399,049,272.98x = 550,682,795.12 × 222,840,364.76
  4. Step 4: Simplify right side
    399,049,272.98x = 122,714,354,931,597,136
  5. Step 5: Solve for x
    x = 122,714,354,931,597,136/399,049,272.98
  6. Step 6: Final answer
    x = 307,516,798.65

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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.