Home / 1,231,362,890.54-1,849,990,969.07-789,571,140.34

Finding the Fourth Proportional to 1,231,362,890.54, 1,849,990,969.07 and 789,571,140.34

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Solution

The fourth proportional to 1,231,362,890.54, 1,849,990,969.07 and 789,571,140.34 is: 1,186,246,142.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,231,362,890.54 : 1,849,990,969.07 = 789,571,140.34 : x
  2. Step 2: Convert to fraction form
    1,231,362,890.54/1,849,990,969.07 = 789,571,140.34/x
  3. Step 3: Cross multiply
    1,231,362,890.54x = 1,849,990,969.07 × 789,571,140.34
  4. Step 4: Simplify right side
    1,231,362,890.54x = 1,460,699,479,067,301,632
  5. Step 5: Solve for x
    x = 1,460,699,479,067,301,632/1,231,362,890.54
  6. Step 6: Final answer
    x = 1,186,246,142.62

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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.