Home / 421,864,212.60-632,796,318.90-145,514,892.60

Finding the Fourth Proportional to 421,864,212.60, 632,796,318.90 and 145,514,892.60

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Solution

The fourth proportional to 421,864,212.60, 632,796,318.90 and 145,514,892.60 is: 218,272,338.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,864,212.60 : 632,796,318.90 = 145,514,892.60 : x
  2. Step 2: Convert to fraction form
    421,864,212.60/632,796,318.90 = 145,514,892.60/x
  3. Step 3: Cross multiply
    421,864,212.60x = 632,796,318.90 × 145,514,892.60
  4. Step 4: Simplify right side
    421,864,212.60x = 92,081,288,382,408,848
  5. Step 5: Solve for x
    x = 92,081,288,382,408,848/421,864,212.60
  6. Step 6: Final answer
    x = 218,272,338.90

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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.