Finding the Fourth Proportional to 19,808,914.76, 27,326,241.78 and 12,937,419.08
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Solution
The fourth proportional to 19,808,914.76, 27,326,241.78 and 12,937,419.08 is: 17,847,067.65
Step by Step Solution
- Step 1: Write the proportion equation
19,808,914.76 : 27,326,241.78 = 12,937,419.08 : x - Step 2: Convert to fraction form
19,808,914.76/27,326,241.78 = 12,937,419.08/x - Step 3: Cross multiply
19,808,914.76x = 27,326,241.78 × 12,937,419.08 - Step 4: Simplify right side
19,808,914.76x = 353,531,041,789,265.19 - Step 5: Solve for x
x = 353,531,041,789,265.19/19,808,914.76 - Step 6: Final answer
x = 17,847,067.65
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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.