Finding the Fourth Proportional to 19,619,387.60, 27,077,111.88 and 11,884,202.96
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Solution
The fourth proportional to 19,619,387.60, 27,077,111.88 and 11,884,202.96 is: 16,401,627.80
Step by Step Solution
- Step 1: Write the proportion equation
19,619,387.60 : 27,077,111.88 = 11,884,202.96 : x - Step 2: Convert to fraction form
19,619,387.60/27,077,111.88 = 11,884,202.96/x - Step 3: Cross multiply
19,619,387.60x = 27,077,111.88 × 11,884,202.96 - Step 4: Simplify right side
19,619,387.60x = 321,789,893,152,547.19 - Step 5: Solve for x
x = 321,789,893,152,547.19/19,619,387.60 - Step 6: Final answer
x = 16,401,627.80
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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.