Home / 99,629,959.20-149,332,964.40-51,089,056.80

Finding the Fourth Proportional to 99,629,959.20, 149,332,964.40 and 51,089,056.80

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Solution

The fourth proportional to 99,629,959.20, 149,332,964.40 and 51,089,056.80 is: 76,576,166.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,629,959.20 : 149,332,964.40 = 51,089,056.80 : x
  2. Step 2: Convert to fraction form
    99,629,959.20/149,332,964.40 = 51,089,056.80/x
  3. Step 3: Cross multiply
    99,629,959.20x = 149,332,964.40 × 51,089,056.80
  4. Step 4: Simplify right side
    99,629,959.20x = 7,629,280,300,343,978
  5. Step 5: Solve for x
    x = 7,629,280,300,343,978/99,629,959.20
  6. Step 6: Final answer
    x = 76,576,166.06

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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.