Home / 213,576,941.22-320,396,111.55-66,036,007.28

Finding the Fourth Proportional to 213,576,941.22, 320,396,111.55 and 66,036,007.28

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Solution

The fourth proportional to 213,576,941.22, 320,396,111.55 and 66,036,007.28 is: 99,063,502.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,576,941.22 : 320,396,111.55 = 66,036,007.28 : x
  2. Step 2: Convert to fraction form
    213,576,941.22/320,396,111.55 = 66,036,007.28/x
  3. Step 3: Cross multiply
    213,576,941.22x = 320,396,111.55 × 66,036,007.28
  4. Step 4: Simplify right side
    213,576,941.22x = 21,157,679,953,197,512
  5. Step 5: Solve for x
    x = 21,157,679,953,197,512/213,576,941.22
  6. Step 6: Final answer
    x = 99,063,502.98

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.