Finding the Fourth Proportional to 27,966,272,961, 38,593,472,141.68 and 15,105,912,844.62
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Solution
The fourth proportional to 27,966,272,961, 38,593,472,141.68 and 15,105,912,844.62 is: 20,846,168,073.83
Step by Step Solution
- Step 1: Write the proportion equation
27,966,272,961 : 38,593,472,141.68 = 15,105,912,844.62 : x - Step 2: Convert to fraction form
27,966,272,961/38,593,472,141.68 = 15,105,912,844.62/x - Step 3: Cross multiply
27,966,272,961x = 38,593,472,141.68 × 15,105,912,844.62 - Step 4: Simplify right side
27,966,272,961x = 582,989,626,543,488,106,496 - Step 5: Solve for x
x = 582,989,626,543,488,106,496/27,966,272,961 - Step 6: Final answer
x = 20,846,168,073.83
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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.