Home / 65,778,690.82-90,753,725-38,271,304.66

Finding the Fourth Proportional to 65,778,690.82, 90,753,725 and 38,271,304.66

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Solution

The fourth proportional to 65,778,690.82, 90,753,725 and 38,271,304.66 is: 52,802,258.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,778,690.82 : 90,753,725 = 38,271,304.66 : x
  2. Step 2: Convert to fraction form
    65,778,690.82/90,753,725 = 38,271,304.66/x
  3. Step 3: Cross multiply
    65,778,690.82x = 90,753,725 × 38,271,304.66
  4. Step 4: Simplify right side
    65,778,690.82x = 3,473,263,458,504,858
  5. Step 5: Solve for x
    x = 3,473,263,458,504,858/65,778,690.82
  6. Step 6: Final answer
    x = 52,802,258.83

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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.