Finding the Fourth Proportional to 85,596,312.97, 128,415,382.80 and 27,304,001.08
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Solution
The fourth proportional to 85,596,312.97, 128,415,382.80 and 27,304,001.08 is: 40,962,672.68
Step by Step Solution
- Step 1: Write the proportion equation
85,596,312.97 : 128,415,382.80 = 27,304,001.08 : x - Step 2: Convert to fraction form
85,596,312.97/128,415,382.80 = 27,304,001.08/x - Step 3: Cross multiply
85,596,312.97x = 128,415,382.80 × 27,304,001.08 - Step 4: Simplify right side
85,596,312.97x = 3,506,253,750,659,813 - Step 5: Solve for x
x = 3,506,253,750,659,813/85,596,312.97 - Step 6: Final answer
x = 40,962,672.68
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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.