Home / 213,576,938.47-320,396,107.43-66,036,004.53

Finding the Fourth Proportional to 213,576,938.47, 320,396,107.43 and 66,036,004.53

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Solution

The fourth proportional to 213,576,938.47, 320,396,107.43 and 66,036,004.53 is: 99,063,498.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,576,938.47 : 320,396,107.43 = 66,036,004.53 : x
  2. Step 2: Convert to fraction form
    213,576,938.47/320,396,107.43 = 66,036,004.53/x
  3. Step 3: Cross multiply
    213,576,938.47x = 320,396,107.43 × 66,036,004.53
  4. Step 4: Simplify right side
    213,576,938.47x = 21,157,678,801,641,848
  5. Step 5: Solve for x
    x = 21,157,678,801,641,848/213,576,938.47
  6. Step 6: Final answer
    x = 99,063,498.86

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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.