Home / 1,107,622,131.22-1,528,989,185.25-690,140,682.04

Finding the Fourth Proportional to 1,107,622,131.22, 1,528,989,185.25 and 690,140,682.04

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Solution

The fourth proportional to 1,107,622,131.22, 1,528,989,185.25 and 690,140,682.04 is: 952,687,391.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,107,622,131.22 : 1,528,989,185.25 = 690,140,682.04 : x
  2. Step 2: Convert to fraction form
    1,107,622,131.22/1,528,989,185.25 = 690,140,682.04/x
  3. Step 3: Cross multiply
    1,107,622,131.22x = 1,528,989,185.25 × 690,140,682.04
  4. Step 4: Simplify right side
    1,107,622,131.22x = 1,055,217,639,140,218,880
  5. Step 5: Solve for x
    x = 1,055,217,639,140,218,880/1,107,622,131.22
  6. Step 6: Final answer
    x = 952,687,391.66

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Double scale
Find fourth proportional to 1,107,622,132.22, 1,528,989,186.63 and 690,140,683.04
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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.