Finding the Fourth Proportional to 9,137,683,656.20, 12,609,760,133.02 and 5,275,088,900.99
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Solution
The fourth proportional to 9,137,683,656.20, 12,609,760,133.02 and 5,275,088,900.99 is: 7,279,482,221.59
Step by Step Solution
- Step 1: Write the proportion equation
9,137,683,656.20 : 12,609,760,133.02 = 5,275,088,900.99 : x - Step 2: Convert to fraction form
9,137,683,656.20/12,609,760,133.02 = 5,275,088,900.99/x - Step 3: Cross multiply
9,137,683,656.20x = 12,609,760,133.02 × 5,275,088,900.99 - Step 4: Simplify right side
9,137,683,656.20x = 66,517,605,721,839,984,640 - Step 5: Solve for x
x = 66,517,605,721,839,984,640/9,137,683,656.20 - Step 6: Final answer
x = 7,279,482,221.59
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.