Finding the Fourth Proportional to 128,455,729.02, 177,269,080.23 and 69,718,395.96
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Solution
The fourth proportional to 128,455,729.02, 177,269,080.23 and 69,718,395.96 is: 96,211,480.96
Step by Step Solution
- Step 1: Write the proportion equation
128,455,729.02 : 177,269,080.23 = 69,718,395.96 : x - Step 2: Convert to fraction form
128,455,729.02/177,269,080.23 = 69,718,395.96/x - Step 3: Cross multiply
128,455,729.02x = 177,269,080.23 × 69,718,395.96 - Step 4: Simplify right side
128,455,729.02x = 12,358,915,926,940,146 - Step 5: Solve for x
x = 12,358,915,926,940,146/128,455,729.02 - Step 6: Final answer
x = 96,211,480.96
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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.