Home / 31,616,106.99-43,616,867.63-21,165,490.34

Finding the Fourth Proportional to 31,616,106.99, 43,616,867.63 and 21,165,490.34

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Solution

The fourth proportional to 31,616,106.99, 43,616,867.63 and 21,165,490.34 is: 29,199,432.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,616,106.99 : 43,616,867.63 = 21,165,490.34 : x
  2. Step 2: Convert to fraction form
    31,616,106.99/43,616,867.63 = 21,165,490.34/x
  3. Step 3: Cross multiply
    31,616,106.99x = 43,616,867.63 × 21,165,490.34
  4. Step 4: Simplify right side
    31,616,106.99x = 923,172,390,608,505.25
  5. Step 5: Solve for x
    x = 923,172,390,608,505.25/31,616,106.99
  6. Step 6: Final answer
    x = 29,199,432.77

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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.