Finding the Fourth Proportional to 21,106,890,517.62, 29,127,403,058.58 and 11,461,534,328.28
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Solution
The fourth proportional to 21,106,890,517.62, 29,127,403,058.58 and 11,461,534,328.28 is: 15,816,859,890.89
Step by Step Solution
- Step 1: Write the proportion equation
21,106,890,517.62 : 29,127,403,058.58 = 11,461,534,328.28 : x - Step 2: Convert to fraction form
21,106,890,517.62/29,127,403,058.58 = 11,461,534,328.28/x - Step 3: Cross multiply
21,106,890,517.62x = 29,127,403,058.58 × 11,461,534,328.28 - Step 4: Simplify right side
21,106,890,517.62x = 333,844,730,049,562,607,616 - Step 5: Solve for x
x = 333,844,730,049,562,607,616/21,106,890,517.62 - Step 6: Final answer
x = 15,816,859,890.89
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1.5x scale
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.