Home / 65,638,730.27-90,639,548.49-40,901,135.87

Finding the Fourth Proportional to 65,638,730.27, 90,639,548.49 and 40,901,135.87

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Solution

The fourth proportional to 65,638,730.27, 90,639,548.49 and 40,901,135.87 is: 56,479,771.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,638,730.27 : 90,639,548.49 = 40,901,135.87 : x
  2. Step 2: Convert to fraction form
    65,638,730.27/90,639,548.49 = 40,901,135.87/x
  3. Step 3: Cross multiply
    65,638,730.27x = 90,639,548.49 × 40,901,135.87
  4. Step 4: Simplify right side
    65,638,730.27x = 3,707,260,487,531,745.50
  5. Step 5: Solve for x
    x = 3,707,260,487,531,745.50/65,638,730.27
  6. Step 6: Final answer
    x = 56,479,771.51

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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.