Home / 9,518,843.60-13,148,326.23-7,871,644.20

Finding the Fourth Proportional to 9,518,843.60, 13,148,326.23 and 7,871,644.20

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Solution

The fourth proportional to 9,518,843.60, 13,148,326.23 and 7,871,644.20 is: 10,873,058.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,518,843.60 : 13,148,326.23 = 7,871,644.20 : x
  2. Step 2: Convert to fraction form
    9,518,843.60/13,148,326.23 = 7,871,644.20/x
  3. Step 3: Cross multiply
    9,518,843.60x = 13,148,326.23 × 7,871,644.20
  4. Step 4: Simplify right side
    9,518,843.60x = 103,498,945,888,408.25
  5. Step 5: Solve for x
    x = 103,498,945,888,408.25/9,518,843.60
  6. Step 6: Final answer
    x = 10,873,058.78

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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.