Home / 120,256,398.54-180,512,156.34-106,512,578.01

Finding the Fourth Proportional to 120,256,398.54, 180,512,156.34 and 106,512,578.01

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Solution

The fourth proportional to 120,256,398.54, 180,512,156.34 and 106,512,578.01 is: 159,881,847.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,256,398.54 : 180,512,156.34 = 106,512,578.01 : x
  2. Step 2: Convert to fraction form
    120,256,398.54/180,512,156.34 = 106,512,578.01/x
  3. Step 3: Cross multiply
    120,256,398.54x = 180,512,156.34 × 106,512,578.01
  4. Step 4: Simplify right side
    120,256,398.54x = 19,226,815,133,917,568
  5. Step 5: Solve for x
    x = 19,226,815,133,917,568/120,256,398.54
  6. Step 6: Final answer
    x = 159,881,847.18

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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.