Home / 207,917,651.82-286,928,627.01-115,099,709.70

Finding the Fourth Proportional to 207,917,651.82, 286,928,627.01 and 115,099,709.70

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Solution

The fourth proportional to 207,917,651.82, 286,928,627.01 and 115,099,709.70 is: 158,838,854.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,917,651.82 : 286,928,627.01 = 115,099,709.70 : x
  2. Step 2: Convert to fraction form
    207,917,651.82/286,928,627.01 = 115,099,709.70/x
  3. Step 3: Cross multiply
    207,917,651.82x = 286,928,627.01 × 115,099,709.70
  4. Step 4: Simplify right side
    207,917,651.82x = 33,025,401,673,470,580
  5. Step 5: Solve for x
    x = 33,025,401,673,470,580/207,917,651.82
  6. Step 6: Final answer
    x = 158,838,854.63

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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.