Finding the Fourth Proportional to 84,207,979.58, 116,163,484.86 and 53,286,086.18
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Solution
The fourth proportional to 84,207,979.58, 116,163,484.86 and 53,286,086.18 is: 73,507,255.44
Step by Step Solution
- Step 1: Write the proportion equation
84,207,979.58 : 116,163,484.86 = 53,286,086.18 : x - Step 2: Convert to fraction form
84,207,979.58/116,163,484.86 = 53,286,086.18/x - Step 3: Cross multiply
84,207,979.58x = 116,163,484.86 × 53,286,086.18 - Step 4: Simplify right side
84,207,979.58x = 6,189,897,465,219,085 - Step 5: Solve for x
x = 6,189,897,465,219,085/84,207,979.58 - Step 6: Final answer
x = 73,507,255.44
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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.