Home / 1,392,179,415.81-2,089,189,121.73-655,460,007.81

Finding the Fourth Proportional to 1,392,179,415.81, 2,089,189,121.73 and 655,460,007.81

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Solution

The fourth proportional to 1,392,179,415.81, 2,089,189,121.73 and 655,460,007.81 is: 983,623,161.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,392,179,415.81 : 2,089,189,121.73 = 655,460,007.81 : x
  2. Step 2: Convert to fraction form
    1,392,179,415.81/2,089,189,121.73 = 655,460,007.81/x
  3. Step 3: Cross multiply
    1,392,179,415.81x = 2,089,189,121.73 × 655,460,007.81
  4. Step 4: Simplify right side
    1,392,179,415.81x = 1,369,379,918,035,266,816
  5. Step 5: Solve for x
    x = 1,369,379,918,035,266,816/1,392,179,415.81
  6. Step 6: Final answer
    x = 983,623,161.27

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1.5x scale

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.