Finding the Fourth Proportional to 10,778,837.49, 16,168,256.81 and 8,609,706.76
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Solution
The fourth proportional to 10,778,837.49, 16,168,256.81 and 8,609,706.76 is: 12,914,560.60
Step by Step Solution
- Step 1: Write the proportion equation
10,778,837.49 : 16,168,256.81 = 8,609,706.76 : x - Step 2: Convert to fraction form
10,778,837.49/16,168,256.81 = 8,609,706.76/x - Step 3: Cross multiply
10,778,837.49x = 16,168,256.81 × 8,609,706.76 - Step 4: Simplify right side
10,778,837.49x = 139,203,950,001,813.14 - Step 5: Solve for x
x = 139,203,950,001,813.14/10,778,837.49 - Step 6: Final answer
x = 12,914,560.60
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1.5x scale
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.