Home / 12,085,754.64-18,128,465.91-5,262,181.35

Finding the Fourth Proportional to 12,085,754.64, 18,128,465.91 and 5,262,181.35

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Solution

The fourth proportional to 12,085,754.64, 18,128,465.91 and 5,262,181.35 is: 7,893,199.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,085,754.64 : 18,128,465.91 = 5,262,181.35 : x
  2. Step 2: Convert to fraction form
    12,085,754.64/18,128,465.91 = 5,262,181.35/x
  3. Step 3: Cross multiply
    12,085,754.64x = 18,128,465.91 × 5,262,181.35
  4. Step 4: Simplify right side
    12,085,754.64x = 95,395,275,215,712.77
  5. Step 5: Solve for x
    x = 95,395,275,215,712.77/12,085,754.64
  6. Step 6: Final answer
    x = 7,893,199.73

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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.