Home / 13,211,088.48-18,229,844.40-7,408,676.16

Finding the Fourth Proportional to 13,211,088.48, 18,229,844.40 and 7,408,676.16

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Solution

The fourth proportional to 13,211,088.48, 18,229,844.40 and 7,408,676.16 is: 10,223,155.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,211,088.48 : 18,229,844.40 = 7,408,676.16 : x
  2. Step 2: Convert to fraction form
    13,211,088.48/18,229,844.40 = 7,408,676.16/x
  3. Step 3: Cross multiply
    13,211,088.48x = 18,229,844.40 × 7,408,676.16
  4. Step 4: Simplify right side
    13,211,088.48x = 135,059,013,606,789.50
  5. Step 5: Solve for x
    x = 135,059,013,606,789.50/13,211,088.48
  6. Step 6: Final answer
    x = 10,223,155.63

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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.