Finding the Fourth Proportional to 153,601,135.77, 211,990,304.16 and 86,633,840.18
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Solution
The fourth proportional to 153,601,135.77, 211,990,304.16 and 86,633,840.18 is: 119,566,395.38
Step by Step Solution
- Step 1: Write the proportion equation
153,601,135.77 : 211,990,304.16 = 86,633,840.18 : x - Step 2: Convert to fraction form
153,601,135.77/211,990,304.16 = 86,633,840.18/x - Step 3: Cross multiply
153,601,135.77x = 211,990,304.16 × 86,633,840.18 - Step 4: Simplify right side
153,601,135.77x = 18,365,534,130,307,032 - Step 5: Solve for x
x = 18,365,534,130,307,032/153,601,135.77 - Step 6: Final answer
x = 119,566,395.38
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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.