Home / 65,197,986.72-89,973,755.28-40,765,863.84

Finding the Fourth Proportional to 65,197,986.72, 89,973,755.28 and 40,765,863.84

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Solution

The fourth proportional to 65,197,986.72, 89,973,755.28 and 40,765,863.84 is: 56,257,225.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,197,986.72 : 89,973,755.28 = 40,765,863.84 : x
  2. Step 2: Convert to fraction form
    65,197,986.72/89,973,755.28 = 40,765,863.84/x
  3. Step 3: Cross multiply
    65,197,986.72x = 89,973,755.28 × 40,765,863.84
  4. Step 4: Simplify right side
    65,197,986.72x = 3,667,857,856,917,961.50
  5. Step 5: Solve for x
    x = 3,667,857,856,917,961.50/65,197,986.72
  6. Step 6: Final answer
    x = 56,257,225.74

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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.