Home / 168,009,640.80-251,510,576.40-99,817,231.20

Finding the Fourth Proportional to 168,009,640.80, 251,510,576.40 and 99,817,231.20

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Solution

The fourth proportional to 168,009,640.80, 251,510,576.40 and 99,817,231.20 is: 149,426,480.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,009,640.80 : 251,510,576.40 = 99,817,231.20 : x
  2. Step 2: Convert to fraction form
    168,009,640.80/251,510,576.40 = 99,817,231.20/x
  3. Step 3: Cross multiply
    168,009,640.80x = 251,510,576.40 × 99,817,231.20
  4. Step 4: Simplify right side
    168,009,640.80x = 25,105,089,353,764,064
  5. Step 5: Solve for x
    x = 25,105,089,353,764,064/168,009,640.80
  6. Step 6: Final answer
    x = 149,426,480.73

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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.