Home / 65,900,549.72-90,952,029.05-40,790,718.60

Finding the Fourth Proportional to 65,900,549.72, 90,952,029.05 and 40,790,718.60

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Solution

The fourth proportional to 65,900,549.72, 90,952,029.05 and 40,790,718.60 is: 56,296,929.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,900,549.72 : 90,952,029.05 = 40,790,718.60 : x
  2. Step 2: Convert to fraction form
    65,900,549.72/90,952,029.05 = 40,790,718.60/x
  3. Step 3: Cross multiply
    65,900,549.72x = 90,952,029.05 × 40,790,718.60
  4. Step 4: Simplify right side
    65,900,549.72x = 3,709,998,622,873,622
  5. Step 5: Solve for x
    x = 3,709,998,622,873,622/65,900,549.72
  6. Step 6: Final answer
    x = 56,296,929.83

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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.