Home / 386,207,890.60-579,983,682.30-204,809,362.60

Finding the Fourth Proportional to 386,207,890.60, 579,983,682.30 and 204,809,362.60

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Solution

The fourth proportional to 386,207,890.60, 579,983,682.30 and 204,809,362.60 is: 307,570,329.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,207,890.60 : 579,983,682.30 = 204,809,362.60 : x
  2. Step 2: Convert to fraction form
    386,207,890.60/579,983,682.30 = 204,809,362.60/x
  3. Step 3: Cross multiply
    386,207,890.60x = 579,983,682.30 × 204,809,362.60
  4. Step 4: Simplify right side
    386,207,890.60x = 118,786,088,290,263,888
  5. Step 5: Solve for x
    x = 118,786,088,290,263,888/386,207,890.60
  6. Step 6: Final answer
    x = 307,570,329.82

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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.