Home / 395,719,538.15-546,090,951.03-219,505,709.18

Finding the Fourth Proportional to 395,719,538.15, 546,090,951.03 and 219,505,709.18

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Solution

The fourth proportional to 395,719,538.15, 546,090,951.03 and 219,505,709.18 is: 302,916,762.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,719,538.15 : 546,090,951.03 = 219,505,709.18 : x
  2. Step 2: Convert to fraction form
    395,719,538.15/546,090,951.03 = 219,505,709.18/x
  3. Step 3: Cross multiply
    395,719,538.15x = 546,090,951.03 × 219,505,709.18
  4. Step 4: Simplify right side
    395,719,538.15x = 119,870,081,479,890,352
  5. Step 5: Solve for x
    x = 119,870,081,479,890,352/395,719,538.15
  6. Step 6: Final answer
    x = 302,916,762.82

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.