Finding the Fourth Proportional to 66,585,816.63, 99,878,725.18 and 18,716,760.63
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Solution
The fourth proportional to 66,585,816.63, 99,878,725.18 and 18,716,760.63 is: 28,075,141.00
Step by Step Solution
- Step 1: Write the proportion equation
66,585,816.63 : 99,878,725.18 = 18,716,760.63 : x - Step 2: Convert to fraction form
66,585,816.63/99,878,725.18 = 18,716,760.63/x - Step 3: Cross multiply
66,585,816.63x = 99,878,725.18 × 18,716,760.63 - Step 4: Simplify right side
66,585,816.63x = 1,869,406,190,677,428 - Step 5: Solve for x
x = 1,869,406,190,677,428/66,585,816.63 - Step 6: Final answer
x = 28,075,141.00
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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.