Home / 405,892,237.10-609,068,673.53-219,143,693.24

Finding the Fourth Proportional to 405,892,237.10, 609,068,673.53 and 219,143,693.24

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Solution

The fourth proportional to 405,892,237.10, 609,068,673.53 and 219,143,693.24 is: 328,839,889.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,892,237.10 : 609,068,673.53 = 219,143,693.24 : x
  2. Step 2: Convert to fraction form
    405,892,237.10/609,068,673.53 = 219,143,693.24/x
  3. Step 3: Cross multiply
    405,892,237.10x = 609,068,673.53 × 219,143,693.24
  4. Step 4: Simplify right side
    405,892,237.10x = 133,473,558,550,010,976
  5. Step 5: Solve for x
    x = 133,473,558,550,010,976/405,892,237.10
  6. Step 6: Final answer
    x = 328,839,889.88

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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.