Finding the Fourth Proportional to 4,921,334,511, 7,382,020,918.16 and 1,190,619,916.44
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Solution
The fourth proportional to 4,921,334,511, 7,382,020,918.16 and 1,190,619,916.44 is: 1,785,934,508.03
Step by Step Solution
- Step 1: Write the proportion equation
4,921,334,511 : 7,382,020,918.16 = 1,190,619,916.44 : x - Step 2: Convert to fraction form
4,921,334,511/7,382,020,918.16 = 1,190,619,916.44/x - Step 3: Cross multiply
4,921,334,511x = 7,382,020,918.16 × 1,190,619,916.44 - Step 4: Simplify right side
4,921,334,511x = 8,789,181,128,737,991,680 - Step 5: Solve for x
x = 8,789,181,128,737,991,680/4,921,334,511 - Step 6: Final answer
x = 1,785,934,508.03
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1.5x scale
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.