Home / 9,419,971.13-12,999,874.16-5,290,729.92

Finding the Fourth Proportional to 9,419,971.13, 12,999,874.16 and 5,290,729.92

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Solution

The fourth proportional to 9,419,971.13, 12,999,874.16 and 5,290,729.92 is: 7,301,383.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,419,971.13 : 12,999,874.16 = 5,290,729.92 : x
  2. Step 2: Convert to fraction form
    9,419,971.13/12,999,874.16 = 5,290,729.92/x
  3. Step 3: Cross multiply
    9,419,971.13x = 12,999,874.16 × 5,290,729.92
  4. Step 4: Simplify right side
    9,419,971.13x = 68,778,823,125,493.66
  5. Step 5: Solve for x
    x = 68,778,823,125,493.66/9,419,971.13
  6. Step 6: Final answer
    x = 7,301,383.64

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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.