Finding the Fourth Proportional to 1,412,246,413.56, 1,948,917,898.98 and 777,239,994.48
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Solution
The fourth proportional to 1,412,246,413.56, 1,948,917,898.98 and 777,239,994.48 is: 1,072,601,015.30
Step by Step Solution
- Step 1: Write the proportion equation
1,412,246,413.56 : 1,948,917,898.98 = 777,239,994.48 : x - Step 2: Convert to fraction form
1,412,246,413.56/1,948,917,898.98 = 777,239,994.48/x - Step 3: Cross multiply
1,412,246,413.56x = 1,948,917,898.98 × 777,239,994.48 - Step 4: Simplify right side
1,412,246,413.56x = 1,514,776,937,045,188,352 - Step 5: Solve for x
x = 1,514,776,937,045,188,352/1,412,246,413.56 - Step 6: Final answer
x = 1,072,601,015.30
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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.