Home / 142,620,053.28-197,000,295.96-117,939,933.24

Finding the Fourth Proportional to 142,620,053.28, 197,000,295.96 and 117,939,933.24

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Solution

The fourth proportional to 142,620,053.28, 197,000,295.96 and 117,939,933.24 is: 162,909,781.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,620,053.28 : 197,000,295.96 = 117,939,933.24 : x
  2. Step 2: Convert to fraction form
    142,620,053.28/197,000,295.96 = 117,939,933.24/x
  3. Step 3: Cross multiply
    142,620,053.28x = 197,000,295.96 × 117,939,933.24
  4. Step 4: Simplify right side
    142,620,053.28x = 23,234,201,753,782,640
  5. Step 5: Solve for x
    x = 23,234,201,753,782,640/142,620,053.28
  6. Step 6: Final answer
    x = 162,909,781.76

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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.