Home / 9,315,261.90-12,855,058.56-5,185,203.30

Finding the Fourth Proportional to 9,315,261.90, 12,855,058.56 and 5,185,203.30

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Solution

The fourth proportional to 9,315,261.90, 12,855,058.56 and 5,185,203.30 is: 7,155,578.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,315,261.90 : 12,855,058.56 = 5,185,203.30 : x
  2. Step 2: Convert to fraction form
    9,315,261.90/12,855,058.56 = 5,185,203.30/x
  3. Step 3: Cross multiply
    9,315,261.90x = 12,855,058.56 × 5,185,203.30
  4. Step 4: Simplify right side
    9,315,261.90x = 66,656,092,067,005.25
  5. Step 5: Solve for x
    x = 66,656,092,067,005.25/9,315,261.90
  6. Step 6: Final answer
    x = 7,155,578.96

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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.