Finding the Fourth Proportional to 97,214,486.40, 145,821,729.60 and 39,687,638.40
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Solution
The fourth proportional to 97,214,486.40, 145,821,729.60 and 39,687,638.40 is: 59,531,457.60
Step by Step Solution
- Step 1: Write the proportion equation
97,214,486.40 : 145,821,729.60 = 39,687,638.40 : x - Step 2: Convert to fraction form
97,214,486.40/145,821,729.60 = 39,687,638.40/x - Step 3: Cross multiply
97,214,486.40x = 145,821,729.60 × 39,687,638.40 - Step 4: Simplify right side
97,214,486.40x = 5,787,320,075,227,376 - Step 5: Solve for x
x = 5,787,320,075,227,376/97,214,486.40 - Step 6: Final answer
x = 59,531,457.60
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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.