Home / 21,166,856.64-31,740,014.16-12,415,525.92

Finding the Fourth Proportional to 21,166,856.64, 31,740,014.16 and 12,415,525.92

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Solution

The fourth proportional to 21,166,856.64, 31,740,014.16 and 12,415,525.92 is: 18,617,264.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,166,856.64 : 31,740,014.16 = 12,415,525.92 : x
  2. Step 2: Convert to fraction form
    21,166,856.64/31,740,014.16 = 12,415,525.92/x
  3. Step 3: Cross multiply
    21,166,856.64x = 31,740,014.16 × 12,415,525.92
  4. Step 4: Simplify right side
    21,166,856.64x = 394,068,968,504,647
  5. Step 5: Solve for x
    x = 394,068,968,504,647/21,166,856.64
  6. Step 6: Final answer
    x = 18,617,264.49

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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.