Home / 1,139,056,356,331.40-1,571,899,328,336.10-618,211,782,699.68

Finding the Fourth Proportional to 1,139,056,356,331.40, 1,571,899,328,336.10 and 618,211,782,699.68

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Solution

The fourth proportional to 1,139,056,356,331.40, 1,571,899,328,336.10 and 618,211,782,699.68 is: 853,133,104,954.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,139,056,356,331.40 : 1,571,899,328,336.10 = 618,211,782,699.68 : x
  2. Step 2: Convert to fraction form
    1,139,056,356,331.40/1,571,899,328,336.10 = 618,211,782,699.68/x
  3. Step 3: Cross multiply
    1,139,056,356,331.40x = 1,571,899,328,336.10 × 618,211,782,699.68
  4. Step 4: Simplify right side
    1,139,056,356,331.40x = 971,766,685,995,090,147,540,992
  5. Step 5: Solve for x
    x = 971,766,685,995,090,147,540,992/1,139,056,356,331.40
  6. Step 6: Final answer
    x = 853,133,104,954.43

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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.