Home / 65,360,977.92-90,198,282.24-36,388,638.72

Finding the Fourth Proportional to 65,360,977.92, 90,198,282.24 and 36,388,638.72

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Solution

The fourth proportional to 65,360,977.92, 90,198,282.24 and 36,388,638.72 is: 50,216,395.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,360,977.92 : 90,198,282.24 = 36,388,638.72 : x
  2. Step 2: Convert to fraction form
    65,360,977.92/90,198,282.24 = 36,388,638.72/x
  3. Step 3: Cross multiply
    65,360,977.92x = 90,198,282.24 × 36,388,638.72
  4. Step 4: Simplify right side
    65,360,977.92x = 3,282,192,705,595,952
  5. Step 5: Solve for x
    x = 3,282,192,705,595,952/65,360,977.92
  6. Step 6: Final answer
    x = 50,216,395.32

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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.