Home / 939,904,939.38-1,297,103,821.37-563,622,789.41

Finding the Fourth Proportional to 939,904,939.38, 1,297,103,821.37 and 563,622,789.41

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Solution

The fourth proportional to 939,904,939.38, 1,297,103,821.37 and 563,622,789.41 is: 777,820,440.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,904,939.38 : 1,297,103,821.37 = 563,622,789.41 : x
  2. Step 2: Convert to fraction form
    939,904,939.38/1,297,103,821.37 = 563,622,789.41/x
  3. Step 3: Cross multiply
    939,904,939.38x = 1,297,103,821.37 × 563,622,789.41
  4. Step 4: Simplify right side
    939,904,939.38x = 731,077,273,955,788,288
  5. Step 5: Solve for x
    x = 731,077,273,955,788,288/939,904,939.38
  6. Step 6: Final answer
    x = 777,820,440.47

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1.5x scale

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.