Home / 207,917,639.18-286,928,609.55-115,099,697.06

Finding the Fourth Proportional to 207,917,639.18, 286,928,609.55 and 115,099,697.06

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Solution

The fourth proportional to 207,917,639.18, 286,928,609.55 and 115,099,697.06 is: 158,838,837.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,917,639.18 : 286,928,609.55 = 115,099,697.06 : x
  2. Step 2: Convert to fraction form
    207,917,639.18/286,928,609.55 = 115,099,697.06/x
  3. Step 3: Cross multiply
    207,917,639.18x = 286,928,609.55 × 115,099,697.06
  4. Step 4: Simplify right side
    207,917,639.18x = 33,025,396,037,052,024
  5. Step 5: Solve for x
    x = 33,025,396,037,052,024/207,917,639.18
  6. Step 6: Final answer
    x = 158,838,837.18

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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.