Finding the Fourth Proportional to 99,403,583.80, 149,016,729.30 and 38,805,215.80
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Solution
The fourth proportional to 99,403,583.80, 149,016,729.30 and 38,805,215.80 is: 58,173,217.88
Step by Step Solution
- Step 1: Write the proportion equation
99,403,583.80 : 149,016,729.30 = 38,805,215.80 : x - Step 2: Convert to fraction form
99,403,583.80/149,016,729.30 = 38,805,215.80/x - Step 3: Cross multiply
99,403,583.80x = 149,016,729.30 × 38,805,215.80 - Step 4: Simplify right side
99,403,583.80x = 5,782,626,338,296,683 - Step 5: Solve for x
x = 5,782,626,338,296,683/99,403,583.80 - Step 6: Final answer
x = 58,173,217.88
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.