Finding the Fourth Proportional to 854,326,797.13, 1,287,893,545.40 and 797,377,118.21
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Solution
The fourth proportional to 854,326,797.13, 1,287,893,545.40 and 797,377,118.21 is: 1,202,042,177.82
Step by Step Solution
- Step 1: Write the proportion equation
854,326,797.13 : 1,287,893,545.40 = 797,377,118.21 : x - Step 2: Convert to fraction form
854,326,797.13/1,287,893,545.40 = 797,377,118.21/x - Step 3: Cross multiply
854,326,797.13x = 1,287,893,545.40 × 797,377,118.21 - Step 4: Simplify right side
854,326,797.13x = 1,026,936,843,792,311,936 - Step 5: Solve for x
x = 1,026,936,843,792,311,936/854,326,797.13 - Step 6: Final answer
x = 1,202,042,177.82
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.