Home / 905,718,606.05-1,358,353,522.87-388,090,348.13

Finding the Fourth Proportional to 905,718,606.05, 1,358,353,522.87 and 388,090,348.13

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Solution

The fourth proportional to 905,718,606.05, 1,358,353,522.87 and 388,090,348.13 is: 582,039,375.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,718,606.05 : 1,358,353,522.87 = 388,090,348.13 : x
  2. Step 2: Convert to fraction form
    905,718,606.05/1,358,353,522.87 = 388,090,348.13/x
  3. Step 3: Cross multiply
    905,718,606.05x = 1,358,353,522.87 × 388,090,348.13
  4. Step 4: Simplify right side
    905,718,606.05x = 527,163,891,576,655,872
  5. Step 5: Solve for x
    x = 527,163,891,576,655,872/905,718,606.05
  6. Step 6: Final answer
    x = 582,039,375.20

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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.