Home / 8,317,460.40-12,476,579.40-2,638,129.20

Finding the Fourth Proportional to 8,317,460.40, 12,476,579.40 and 2,638,129.20

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Solution

The fourth proportional to 8,317,460.40, 12,476,579.40 and 2,638,129.20 is: 3,957,317.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,317,460.40 : 12,476,579.40 = 2,638,129.20 : x
  2. Step 2: Convert to fraction form
    8,317,460.40/12,476,579.40 = 2,638,129.20/x
  3. Step 3: Cross multiply
    8,317,460.40x = 12,476,579.40 × 2,638,129.20
  4. Step 4: Simplify right side
    8,317,460.40x = 32,914,828,431,258.48
  5. Step 5: Solve for x
    x = 32,914,828,431,258.48/8,317,460.40
  6. Step 6: Final answer
    x = 3,957,317.12

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.