Finding the Fourth Proportional to 18,144,587.34, 27,207,430.98 and 8,557,391.70
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Solution
The fourth proportional to 18,144,587.34, 27,207,430.98 and 8,557,391.70 is: 12,831,630.71
Step by Step Solution
- Step 1: Write the proportion equation
18,144,587.34 : 27,207,430.98 = 8,557,391.70 : x - Step 2: Convert to fraction form
18,144,587.34/27,207,430.98 = 8,557,391.70/x - Step 3: Cross multiply
18,144,587.34x = 27,207,430.98 × 8,557,391.70 - Step 4: Simplify right side
18,144,587.34x = 232,824,644,046,574.84 - Step 5: Solve for x
x = 232,824,644,046,574.84/18,144,587.34 - Step 6: Final answer
x = 12,831,630.71
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.