Home / 66,171,738.60-99,260,718.30-20,735,015.40

Finding the Fourth Proportional to 66,171,738.60, 99,260,718.30 and 20,735,015.40

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Solution

The fourth proportional to 66,171,738.60, 99,260,718.30 and 20,735,015.40 is: 31,103,497.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,171,738.60 : 99,260,718.30 = 20,735,015.40 : x
  2. Step 2: Convert to fraction form
    66,171,738.60/99,260,718.30 = 20,735,015.40/x
  3. Step 3: Cross multiply
    66,171,738.60x = 99,260,718.30 × 20,735,015.40
  4. Step 4: Simplify right side
    66,171,738.60x = 2,058,172,522,565,561.50
  5. Step 5: Solve for x
    x = 2,058,172,522,565,561.50/66,171,738.60
  6. Step 6: Final answer
    x = 31,103,497.75

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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.