Home / 7,138,727.35-9,851,615.09-3,875,679.61

Finding the Fourth Proportional to 7,138,727.35, 9,851,615.09 and 3,875,679.61

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Solution

The fourth proportional to 7,138,727.35, 9,851,615.09 and 3,875,679.61 is: 5,348,530.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,138,727.35 : 9,851,615.09 = 3,875,679.61 : x
  2. Step 2: Convert to fraction form
    7,138,727.35/9,851,615.09 = 3,875,679.61/x
  3. Step 3: Cross multiply
    7,138,727.35x = 9,851,615.09 × 3,875,679.61
  4. Step 4: Simplify right side
    7,138,727.35x = 38,181,703,729,881.31
  5. Step 5: Solve for x
    x = 38,181,703,729,881.31/7,138,727.35
  6. Step 6: Final answer
    x = 5,348,530.89

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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.