Home / 213,176,168.64-319,794,755.87-65,636,212.08

Finding the Fourth Proportional to 213,176,168.64, 319,794,755.87 and 65,636,212.08

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Solution

The fourth proportional to 213,176,168.64, 319,794,755.87 and 65,636,212.08 is: 98,463,709.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,176,168.64 : 319,794,755.87 = 65,636,212.08 : x
  2. Step 2: Convert to fraction form
    213,176,168.64/319,794,755.87 = 65,636,212.08/x
  3. Step 3: Cross multiply
    213,176,168.64x = 319,794,755.87 × 65,636,212.08
  4. Step 4: Simplify right side
    213,176,168.64x = 20,990,116,418,355,144
  5. Step 5: Solve for x
    x = 20,990,116,418,355,144/213,176,168.64
  6. Step 6: Final answer
    x = 98,463,709.86

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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.