Home / 148,733,135.78-205,035,405.33-103,940,038.38

Finding the Fourth Proportional to 148,733,135.78, 205,035,405.33 and 103,940,038.38

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Solution

The fourth proportional to 148,733,135.78, 205,035,405.33 and 103,940,038.38 is: 143,286,079.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,733,135.78 : 205,035,405.33 = 103,940,038.38 : x
  2. Step 2: Convert to fraction form
    148,733,135.78/205,035,405.33 = 103,940,038.38/x
  3. Step 3: Cross multiply
    148,733,135.78x = 205,035,405.33 × 103,940,038.38
  4. Step 4: Simplify right side
    148,733,135.78x = 21,311,387,899,259,056
  5. Step 5: Solve for x
    x = 21,311,387,899,259,056/148,733,135.78
  6. Step 6: Final answer
    x = 143,286,079.38

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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.