Finding the Fourth Proportional to 1,361,763,297.72, 1,879,349,146.42 and 767,164,537.08
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Solution
The fourth proportional to 1,361,763,297.72, 1,879,349,146.42 and 767,164,537.08 is: 1,058,752,295.89
Step by Step Solution
- Step 1: Write the proportion equation
1,361,763,297.72 : 1,879,349,146.42 = 767,164,537.08 : x - Step 2: Convert to fraction form
1,361,763,297.72/1,879,349,146.42 = 767,164,537.08/x - Step 3: Cross multiply
1,361,763,297.72x = 1,879,349,146.42 × 767,164,537.08 - Step 4: Simplify right side
1,361,763,297.72x = 1,441,770,017,924,992,512 - Step 5: Solve for x
x = 1,441,770,017,924,992,512/1,361,763,297.72 - Step 6: Final answer
x = 1,058,752,295.89
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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.