Home / 209,581,619.54-312,898,814.31-160,138,710.86

Finding the Fourth Proportional to 209,581,619.54, 312,898,814.31 and 160,138,710.86

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Solution

The fourth proportional to 209,581,619.54, 312,898,814.31 and 160,138,710.86 is: 239,082,095.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,581,619.54 : 312,898,814.31 = 160,138,710.86 : x
  2. Step 2: Convert to fraction form
    209,581,619.54/312,898,814.31 = 160,138,710.86/x
  3. Step 3: Cross multiply
    209,581,619.54x = 312,898,814.31 × 160,138,710.86
  4. Step 4: Simplify right side
    209,581,619.54x = 50,107,212,752,425,232
  5. Step 5: Solve for x
    x = 50,107,212,752,425,232/209,581,619.54
  6. Step 6: Final answer
    x = 239,082,095.38

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.