Home / 143,179,564.37-197,582,236.74-87,518,180.90

Finding the Fourth Proportional to 143,179,564.37, 197,582,236.74 and 87,518,180.90

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Solution

The fourth proportional to 143,179,564.37, 197,582,236.74 and 87,518,180.90 is: 120,771,689.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,179,564.37 : 197,582,236.74 = 87,518,180.90 : x
  2. Step 2: Convert to fraction form
    143,179,564.37/197,582,236.74 = 87,518,180.90/x
  3. Step 3: Cross multiply
    143,179,564.37x = 197,582,236.74 × 87,518,180.90
  4. Step 4: Simplify right side
    143,179,564.37x = 17,292,037,938,131,904
  5. Step 5: Solve for x
    x = 17,292,037,938,131,904/143,179,564.37
  6. Step 6: Final answer
    x = 120,771,689.83

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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.