Home / 1,107,622,122.71-1,528,989,173.51-690,140,673.54

Finding the Fourth Proportional to 1,107,622,122.71, 1,528,989,173.51 and 690,140,673.54

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Solution

The fourth proportional to 1,107,622,122.71, 1,528,989,173.51 and 690,140,673.54 is: 952,687,379.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,107,622,122.71 : 1,528,989,173.51 = 690,140,673.54 : x
  2. Step 2: Convert to fraction form
    1,107,622,122.71/1,528,989,173.51 = 690,140,673.54/x
  3. Step 3: Cross multiply
    1,107,622,122.71x = 1,528,989,173.51 × 690,140,673.54
  4. Step 4: Simplify right side
    1,107,622,122.71x = 1,055,217,618,038,108,672
  5. Step 5: Solve for x
    x = 1,055,217,618,038,108,672/1,107,622,122.71
  6. Step 6: Final answer
    x = 952,687,379.94

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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.