Finding the Fourth Proportional to 99,378,511.80, 137,145,615.42 and 54,729,244.68
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Solution
The fourth proportional to 99,378,511.80, 137,145,615.42 and 54,729,244.68 is: 75,528,158.02
Step by Step Solution
- Step 1: Write the proportion equation
99,378,511.80 : 137,145,615.42 = 54,729,244.68 : x - Step 2: Convert to fraction form
99,378,511.80/137,145,615.42 = 54,729,244.68/x - Step 3: Cross multiply
99,378,511.80x = 137,145,615.42 × 54,729,244.68 - Step 4: Simplify right side
99,378,511.80x = 7,505,875,943,110,360 - Step 5: Solve for x
x = 7,505,875,943,110,360/99,378,511.80 - Step 6: Final answer
x = 75,528,158.02
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.