Home / 111,293,430.20-166,940,145.30-76,656,015.80

Finding the Fourth Proportional to 111,293,430.20, 166,940,145.30 and 76,656,015.80

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Solution

The fourth proportional to 111,293,430.20, 166,940,145.30 and 76,656,015.80 is: 114,984,023.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,293,430.20 : 166,940,145.30 = 76,656,015.80 : x
  2. Step 2: Convert to fraction form
    111,293,430.20/166,940,145.30 = 76,656,015.80/x
  3. Step 3: Cross multiply
    111,293,430.20x = 166,940,145.30 × 76,656,015.80
  4. Step 4: Simplify right side
    111,293,430.20x = 12,796,966,415,771,096
  5. Step 5: Solve for x
    x = 12,796,966,415,771,096/111,293,430.20
  6. Step 6: Final answer
    x = 114,984,023.70

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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.