Finding the Fourth Proportional to 97,115,705.40, 145,673,558.10 and 66,504,703.80
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Solution
The fourth proportional to 97,115,705.40, 145,673,558.10 and 66,504,703.80 is: 99,757,055.70
Step by Step Solution
- Step 1: Write the proportion equation
97,115,705.40 : 145,673,558.10 = 66,504,703.80 : x - Step 2: Convert to fraction form
97,115,705.40/145,673,558.10 = 66,504,703.80/x - Step 3: Cross multiply
97,115,705.40x = 145,673,558.10 × 66,504,703.80 - Step 4: Simplify right side
97,115,705.40x = 9,687,976,832,932,590 - Step 5: Solve for x
x = 9,687,976,832,932,590/97,115,705.40 - Step 6: Final answer
x = 99,757,055.70
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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.