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Finding the Fourth Proportional to 296,703,907.80, 445,055,861.70 and 252,865,930.20

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Solution

The fourth proportional to 296,703,907.80, 445,055,861.70 and 252,865,930.20 is: 379,298,895.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    296,703,907.80 : 445,055,861.70 = 252,865,930.20 : x
  2. Step 2: Convert to fraction form
    296,703,907.80/445,055,861.70 = 252,865,930.20/x
  3. Step 3: Cross multiply
    296,703,907.80x = 445,055,861.70 × 252,865,930.20
  4. Step 4: Simplify right side
    296,703,907.80x = 112,539,464,459,733,040
  5. Step 5: Solve for x
    x = 112,539,464,459,733,040/296,703,907.80
  6. Step 6: Final answer
    x = 379,298,895.30

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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.