Home / 205,413,641-308,120,442.76-90,398,183.28

Finding the Fourth Proportional to 205,413,641, 308,120,442.76 and 90,398,183.28

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Solution

The fourth proportional to 205,413,641, 308,120,442.76 and 90,398,183.28 is: 135,597,266.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,413,641 : 308,120,442.76 = 90,398,183.28 : x
  2. Step 2: Convert to fraction form
    205,413,641/308,120,442.76 = 90,398,183.28/x
  3. Step 3: Cross multiply
    205,413,641x = 308,120,442.76 × 90,398,183.28
  4. Step 4: Simplify right side
    205,413,641x = 27,853,528,256,933,228
  5. Step 5: Solve for x
    x = 27,853,528,256,933,228/205,413,641
  6. Step 6: Final answer
    x = 135,597,266.67

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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.