Home / 39,916,164.30-55,084,384.80-21,581,449.80

Finding the Fourth Proportional to 39,916,164.30, 55,084,384.80 and 21,581,449.80

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Solution

The fourth proportional to 39,916,164.30, 55,084,384.80 and 21,581,449.80 is: 29,782,442.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,916,164.30 : 55,084,384.80 = 21,581,449.80 : x
  2. Step 2: Convert to fraction form
    39,916,164.30/55,084,384.80 = 21,581,449.80/x
  3. Step 3: Cross multiply
    39,916,164.30x = 55,084,384.80 × 21,581,449.80
  4. Step 4: Simplify right side
    39,916,164.30x = 1,188,800,885,325,083
  5. Step 5: Solve for x
    x = 1,188,800,885,325,083/39,916,164.30
  6. Step 6: Final answer
    x = 29,782,442.93

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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.