Home / 207,917,653.82-286,928,629.78-115,099,711.70

Finding the Fourth Proportional to 207,917,653.82, 286,928,629.78 and 115,099,711.70

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Solution

The fourth proportional to 207,917,653.82, 286,928,629.78 and 115,099,711.70 is: 158,838,857.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,917,653.82 : 286,928,629.78 = 115,099,711.70 : x
  2. Step 2: Convert to fraction form
    207,917,653.82/286,928,629.78 = 115,099,711.70/x
  3. Step 3: Cross multiply
    207,917,653.82x = 286,928,629.78 × 115,099,711.70
  4. Step 4: Simplify right side
    207,917,653.82x = 33,025,402,566,154,032
  5. Step 5: Solve for x
    x = 33,025,402,566,154,032/207,917,653.82
  6. Step 6: Final answer
    x = 158,838,857.40

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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.