Home / 1,107,622,123.71-1,528,989,174.89-690,140,674.54

Finding the Fourth Proportional to 1,107,622,123.71, 1,528,989,174.89 and 690,140,674.54

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Solution

The fourth proportional to 1,107,622,123.71, 1,528,989,174.89 and 690,140,674.54 is: 952,687,381.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,107,622,123.71 : 1,528,989,174.89 = 690,140,674.54 : x
  2. Step 2: Convert to fraction form
    1,107,622,123.71/1,528,989,174.89 = 690,140,674.54/x
  3. Step 3: Cross multiply
    1,107,622,123.71x = 1,528,989,174.89 × 690,140,674.54
  4. Step 4: Simplify right side
    1,107,622,123.71x = 1,055,217,620,522,942,592
  5. Step 5: Solve for x
    x = 1,055,217,620,522,942,592/1,107,622,123.71
  6. Step 6: Final answer
    x = 952,687,381.31

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Double scale
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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.