Home / 772,747,201.80-1,066,294,140.66-522,396,172.35

Finding the Fourth Proportional to 772,747,201.80, 1,066,294,140.66 and 522,396,172.35

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Solution

The fourth proportional to 772,747,201.80, 1,066,294,140.66 and 522,396,172.35 is: 720,841,144.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    772,747,201.80 : 1,066,294,140.66 = 522,396,172.35 : x
  2. Step 2: Convert to fraction form
    772,747,201.80/1,066,294,140.66 = 522,396,172.35/x
  3. Step 3: Cross multiply
    772,747,201.80x = 1,066,294,140.66 × 522,396,172.35
  4. Step 4: Simplify right side
    772,747,201.80x = 557,027,977,680,016,512
  5. Step 5: Solve for x
    x = 557,027,977,680,016,512/772,747,201.80
  6. Step 6: Final answer
    x = 720,841,144.92

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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.