Home / 1,121,238,092.20-1,681,857,138.30-538,831,900.30

Finding the Fourth Proportional to 1,121,238,092.20, 1,681,857,138.30 and 538,831,900.30

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Solution

The fourth proportional to 1,121,238,092.20, 1,681,857,138.30 and 538,831,900.30 is: 808,247,850.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,121,238,092.20 : 1,681,857,138.30 = 538,831,900.30 : x
  2. Step 2: Convert to fraction form
    1,121,238,092.20/1,681,857,138.30 = 538,831,900.30/x
  3. Step 3: Cross multiply
    1,121,238,092.20x = 1,681,857,138.30 × 538,831,900.30
  4. Step 4: Simplify right side
    1,121,238,092.20x = 906,238,277,863,308,800
  5. Step 5: Solve for x
    x = 906,238,277,863,308,800/1,121,238,092.20
  6. Step 6: Final answer
    x = 808,247,850.45

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