Home / 9,258,772.72-12,777,208.54-5,128,867.12

Finding the Fourth Proportional to 9,258,772.72, 12,777,208.54 and 5,128,867.12

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Solution

The fourth proportional to 9,258,772.72, 12,777,208.54 and 5,128,867.12 is: 7,077,893.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,258,772.72 : 12,777,208.54 = 5,128,867.12 : x
  2. Step 2: Convert to fraction form
    9,258,772.72/12,777,208.54 = 5,128,867.12/x
  3. Step 3: Cross multiply
    9,258,772.72x = 12,777,208.54 × 5,128,867.12
  4. Step 4: Simplify right side
    9,258,772.72x = 65,532,604,766,189.20
  5. Step 5: Solve for x
    x = 65,532,604,766,189.20/9,258,772.72
  6. Step 6: Final answer
    x = 7,077,893.23

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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.