Finding the Fourth Proportional to 1,999,520,879,840.40, 2,759,291,880,083 and 1,176,511,144,510.70
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Solution
The fourth proportional to 1,999,520,879,840.40, 2,759,291,880,083 and 1,176,511,144,510.70 is: 1,623,557,763,565.17
Step by Step Solution
- Step 1: Write the proportion equation
1,999,520,879,840.40 : 2,759,291,880,083 = 1,176,511,144,510.70 : x - Step 2: Convert to fraction form
1,999,520,879,840.40/2,759,291,880,083 = 1,176,511,144,510.70/x - Step 3: Cross multiply
1,999,520,879,840.40x = 2,759,291,880,083 × 1,176,511,144,510.70 - Step 4: Simplify right side
1,999,520,879,840.40x = 3,246,337,647,875,531,279,958,016 - Step 5: Solve for x
x = 3,246,337,647,875,531,279,958,016/1,999,520,879,840.40 - Step 6: Final answer
x = 1,623,557,763,565.17
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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.