Home / 40,090,700.79-55,325,202.57-21,755,986.29

Finding the Fourth Proportional to 40,090,700.79, 55,325,202.57 and 21,755,986.29

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Solution

The fourth proportional to 40,090,700.79, 55,325,202.57 and 21,755,986.29 is: 30,023,280.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,090,700.79 : 55,325,202.57 = 21,755,986.29 : x
  2. Step 2: Convert to fraction form
    40,090,700.79/55,325,202.57 = 21,755,986.29/x
  3. Step 3: Cross multiply
    40,090,700.79x = 55,325,202.57 × 21,755,986.29
  4. Step 4: Simplify right side
    40,090,700.79x = 1,203,654,348,604,392.75
  5. Step 5: Solve for x
    x = 1,203,654,348,604,392.75/40,090,700.79
  6. Step 6: Final answer
    x = 30,023,280.33

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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.