Home / 727,641,906.40-1,091,462,859.60-210,089,231.20

Finding the Fourth Proportional to 727,641,906.40, 1,091,462,859.60 and 210,089,231.20

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Solution

The fourth proportional to 727,641,906.40, 1,091,462,859.60 and 210,089,231.20 is: 315,133,846.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,641,906.40 : 1,091,462,859.60 = 210,089,231.20 : x
  2. Step 2: Convert to fraction form
    727,641,906.40/1,091,462,859.60 = 210,089,231.20/x
  3. Step 3: Cross multiply
    727,641,906.40x = 1,091,462,859.60 × 210,089,231.20
  4. Step 4: Simplify right side
    727,641,906.40x = 229,304,593,056,717,504
  5. Step 5: Solve for x
    x = 229,304,593,056,717,504/727,641,906.40
  6. Step 6: Final answer
    x = 315,133,846.80

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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.