Home / 142,620,021.37-197,000,252.11-117,939,901.33

Finding the Fourth Proportional to 142,620,021.37, 197,000,252.11 and 117,939,901.33

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Solution

The fourth proportional to 142,620,021.37, 197,000,252.11 and 117,939,901.33 is: 162,909,737.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,620,021.37 : 197,000,252.11 = 117,939,901.33 : x
  2. Step 2: Convert to fraction form
    142,620,021.37/197,000,252.11 = 117,939,901.33/x
  3. Step 3: Cross multiply
    142,620,021.37x = 197,000,252.11 × 117,939,901.33
  4. Step 4: Simplify right side
    142,620,021.37x = 23,234,190,296,232,200
  5. Step 5: Solve for x
    x = 23,234,190,296,232,200/142,620,021.37
  6. Step 6: Final answer
    x = 162,909,737.87

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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.