Home / 262,422,709.92-393,644,822.76-90,018,087.12

Finding the Fourth Proportional to 262,422,709.92, 393,644,822.76 and 90,018,087.12

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Solution

The fourth proportional to 262,422,709.92, 393,644,822.76 and 90,018,087.12 is: 135,030,820.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,422,709.92 : 393,644,822.76 = 90,018,087.12 : x
  2. Step 2: Convert to fraction form
    262,422,709.92/393,644,822.76 = 90,018,087.12/x
  3. Step 3: Cross multiply
    262,422,709.92x = 393,644,822.76 × 90,018,087.12
  4. Step 4: Simplify right side
    262,422,709.92x = 35,435,153,949,546,640
  5. Step 5: Solve for x
    x = 35,435,153,949,546,640/262,422,709.92
  6. Step 6: Final answer
    x = 135,030,820.92

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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.