Home / 1,161,805,911.81-1,603,297,587.78-660,042,228.60

Finding the Fourth Proportional to 1,161,805,911.81, 1,603,297,587.78 and 660,042,228.60

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Solution

The fourth proportional to 1,161,805,911.81, 1,603,297,587.78 and 660,042,228.60 is: 910,861,360.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,161,805,911.81 : 1,603,297,587.78 = 660,042,228.60 : x
  2. Step 2: Convert to fraction form
    1,161,805,911.81/1,603,297,587.78 = 660,042,228.60/x
  3. Step 3: Cross multiply
    1,161,805,911.81x = 1,603,297,587.78 × 660,042,228.60
  4. Step 4: Simplify right side
    1,161,805,911.81x = 1,058,244,112,935,998,720
  5. Step 5: Solve for x
    x = 1,058,244,112,935,998,720/1,161,805,911.81
  6. Step 6: Final answer
    x = 910,861,360.04

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.