Home / 142,620,019.58-197,000,249.64-117,939,899.54

Finding the Fourth Proportional to 142,620,019.58, 197,000,249.64 and 117,939,899.54

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Solution

The fourth proportional to 142,620,019.58, 197,000,249.64 and 117,939,899.54 is: 162,909,735.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,620,019.58 : 197,000,249.64 = 117,939,899.54 : x
  2. Step 2: Convert to fraction form
    142,620,019.58/197,000,249.64 = 117,939,899.54/x
  3. Step 3: Cross multiply
    142,620,019.58x = 197,000,249.64 × 117,939,899.54
  4. Step 4: Simplify right side
    142,620,019.58x = 23,234,189,651,982,860
  5. Step 5: Solve for x
    x = 23,234,189,651,982,860/142,620,019.58
  6. Step 6: Final answer
    x = 162,909,735.40

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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.