Finding the Fourth Proportional to 207,238,476.84, 310,836,412.80 and 69,049,158.44
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Solution
The fourth proportional to 207,238,476.84, 310,836,412.80 and 69,049,158.44 is: 103,566,639.96
Step by Step Solution
- Step 1: Write the proportion equation
207,238,476.84 : 310,836,412.80 = 69,049,158.44 : x - Step 2: Convert to fraction form
207,238,476.84/310,836,412.80 = 69,049,158.44/x - Step 3: Cross multiply
207,238,476.84x = 310,836,412.80 × 69,049,158.44 - Step 4: Simplify right side
207,238,476.84x = 21,462,992,716,348,444 - Step 5: Solve for x
x = 21,462,992,716,348,444/207,238,476.84 - Step 6: Final answer
x = 103,566,639.96
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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.