Home / 21,664,321.64-32,302,797.70-21,069,107.72

Finding the Fourth Proportional to 21,664,321.64, 32,302,797.70 and 21,069,107.72

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Solution

The fourth proportional to 21,664,321.64, 32,302,797.70 and 21,069,107.72 is: 31,415,298.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,664,321.64 : 32,302,797.70 = 21,069,107.72 : x
  2. Step 2: Convert to fraction form
    21,664,321.64/32,302,797.70 = 21,069,107.72/x
  3. Step 3: Cross multiply
    21,664,321.64x = 32,302,797.70 × 21,069,107.72
  4. Step 4: Simplify right side
    21,664,321.64x = 680,591,124,398,668.25
  5. Step 5: Solve for x
    x = 680,591,124,398,668.25/21,664,321.64
  6. Step 6: Final answer
    x = 31,415,298.19

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.