Home / 538,118,810.80-742,603,954.53-290,600,143.18

Finding the Fourth Proportional to 538,118,810.80, 742,603,954.53 and 290,600,143.18

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Solution

The fourth proportional to 538,118,810.80, 742,603,954.53 and 290,600,143.18 is: 401,028,195.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,118,810.80 : 742,603,954.53 = 290,600,143.18 : x
  2. Step 2: Convert to fraction form
    538,118,810.80/742,603,954.53 = 290,600,143.18/x
  3. Step 3: Cross multiply
    538,118,810.80x = 742,603,954.53 × 290,600,143.18
  4. Step 4: Simplify right side
    538,118,810.80x = 215,800,815,512,452,192
  5. Step 5: Solve for x
    x = 215,800,815,512,452,192/538,118,810.80
  6. Step 6: Final answer
    x = 401,028,195.23

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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.