Finding the Fourth Proportional to 1,191,571,903.44, 1,644,384,352.87 and 655,785,257.44
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Solution
The fourth proportional to 1,191,571,903.44, 1,644,384,352.87 and 655,785,257.44 is: 904,991,979.97
Step by Step Solution
- Step 1: Write the proportion equation
1,191,571,903.44 : 1,644,384,352.87 = 655,785,257.44 : x - Step 2: Convert to fraction form
1,191,571,903.44/1,644,384,352.87 = 655,785,257.44/x - Step 3: Cross multiply
1,191,571,903.44x = 1,644,384,352.87 × 655,785,257.44 - Step 4: Simplify right side
1,191,571,903.44x = 1,078,363,016,175,124,864 - Step 5: Solve for x
x = 1,078,363,016,175,124,864/1,191,571,903.44 - Step 6: Final answer
x = 904,991,979.97
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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.