Finding the Fourth Proportional to 14,912,375,437.12, 20,579,514,395.75 and 8,138,628,478.66
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Solution
The fourth proportional to 14,912,375,437.12, 20,579,514,395.75 and 8,138,628,478.66 is: 11,231,545,413.04
Step by Step Solution
- Step 1: Write the proportion equation
14,912,375,437.12 : 20,579,514,395.75 = 8,138,628,478.66 : x - Step 2: Convert to fraction form
14,912,375,437.12/20,579,514,395.75 = 8,138,628,478.66/x - Step 3: Cross multiply
14,912,375,437.12x = 20,579,514,395.75 × 8,138,628,478.66 - Step 4: Simplify right side
14,912,375,437.12x = 167,489,021,938,244,386,816 - Step 5: Solve for x
x = 167,489,021,938,244,386,816/14,912,375,437.12 - Step 6: Final answer
x = 11,231,545,413.04
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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.