Home / 209,546,595-289,294,163.28-139,077,767.88

Finding the Fourth Proportional to 209,546,595, 289,294,163.28 and 139,077,767.88

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Solution

The fourth proportional to 209,546,595, 289,294,163.28 and 139,077,767.88 is: 192,006,873.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,546,595 : 289,294,163.28 = 139,077,767.88 : x
  2. Step 2: Convert to fraction form
    209,546,595/289,294,163.28 = 139,077,767.88/x
  3. Step 3: Cross multiply
    209,546,595x = 289,294,163.28 × 139,077,767.88
  4. Step 4: Simplify right side
    209,546,595x = 40,234,386,489,694,656
  5. Step 5: Solve for x
    x = 40,234,386,489,694,656/209,546,595
  6. Step 6: Final answer
    x = 192,006,873.17

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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.