Finding the Fourth Proportional to 19,738,233.60, 29,657,116.80 and 12,553,209.60
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Solution
The fourth proportional to 19,738,233.60, 29,657,116.80 and 12,553,209.60 is: 18,861,465.06
Step by Step Solution
- Step 1: Write the proportion equation
19,738,233.60 : 29,657,116.80 = 12,553,209.60 : x - Step 2: Convert to fraction form
19,738,233.60/29,657,116.80 = 12,553,209.60/x - Step 3: Cross multiply
19,738,233.60x = 29,657,116.80 × 12,553,209.60 - Step 4: Simplify right side
19,738,233.60x = 372,292,003,322,081.25 - Step 5: Solve for x
x = 372,292,003,322,081.25/19,738,233.60 - Step 6: Final answer
x = 18,861,465.06
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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.