Home / 538,720,541.66-743,434,022.94-291,201,903.20

Finding the Fourth Proportional to 538,720,541.66, 743,434,022.94 and 291,201,903.20

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Solution

The fourth proportional to 538,720,541.66, 743,434,022.94 and 291,201,903.20 is: 401,858,450.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,720,541.66 : 743,434,022.94 = 291,201,903.20 : x
  2. Step 2: Convert to fraction form
    538,720,541.66/743,434,022.94 = 291,201,903.20/x
  3. Step 3: Cross multiply
    538,720,541.66x = 743,434,022.94 × 291,201,903.20
  4. Step 4: Simplify right side
    538,720,541.66x = 216,489,402,383,760,480
  5. Step 5: Solve for x
    x = 216,489,402,383,760,480/538,720,541.66
  6. Step 6: Final answer
    x = 401,858,450.98

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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.