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Finding the Fourth Proportional to 265,226,910.57, 397,900,006.25 and 80,978,973.08

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Solution

The fourth proportional to 265,226,910.57, 397,900,006.25 and 80,978,973.08 is: 121,486,668.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,226,910.57 : 397,900,006.25 = 80,978,973.08 : x
  2. Step 2: Convert to fraction form
    265,226,910.57/397,900,006.25 = 80,978,973.08/x
  3. Step 3: Cross multiply
    265,226,910.57x = 397,900,006.25 × 80,978,973.08
  4. Step 4: Simplify right side
    265,226,910.57x = 32,221,533,892,256,188
  5. Step 5: Solve for x
    x = 32,221,533,892,256,188/265,226,910.57
  6. Step 6: Final answer
    x = 121,486,668.99

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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.