Finding the Fourth Proportional to 67,664,871.48, 93,361,517.93 and 38,296,203.44
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Solution
The fourth proportional to 67,664,871.48, 93,361,517.93 and 38,296,203.44 is: 52,839,702.57
Step by Step Solution
- Step 1: Write the proportion equation
67,664,871.48 : 93,361,517.93 = 38,296,203.44 : x - Step 2: Convert to fraction form
67,664,871.48/93,361,517.93 = 38,296,203.44/x - Step 3: Cross multiply
67,664,871.48x = 93,361,517.93 × 38,296,203.44 - Step 4: Simplify right side
67,664,871.48x = 3,575,391,683,743,421 - Step 5: Solve for x
x = 3,575,391,683,743,421/67,664,871.48 - Step 6: Final answer
x = 52,839,702.57
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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.