Home / 207,917,643.75-286,928,615.87-115,099,701.63

Finding the Fourth Proportional to 207,917,643.75, 286,928,615.87 and 115,099,701.63

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Solution

The fourth proportional to 207,917,643.75, 286,928,615.87 and 115,099,701.63 is: 158,838,843.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,917,643.75 : 286,928,615.87 = 115,099,701.63 : x
  2. Step 2: Convert to fraction form
    207,917,643.75/286,928,615.87 = 115,099,701.63/x
  3. Step 3: Cross multiply
    207,917,643.75x = 286,928,615.87 × 115,099,701.63
  4. Step 4: Simplify right side
    207,917,643.75x = 33,025,398,075,170,384
  5. Step 5: Solve for x
    x = 33,025,398,075,170,384/207,917,643.75
  6. Step 6: Final answer
    x = 158,838,843.49

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.