Finding the Fourth Proportional to 20,038,165,178.91, 27,662,082,685.84 and 11,578,352,533.08
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Solution
The fourth proportional to 20,038,165,178.91, 27,662,082,685.84 and 11,578,352,533.08 is: 15,983,566,473.09
Step by Step Solution
- Step 1: Write the proportion equation
20,038,165,178.91 : 27,662,082,685.84 = 11,578,352,533.08 : x - Step 2: Convert to fraction form
20,038,165,178.91/27,662,082,685.84 = 11,578,352,533.08/x - Step 3: Cross multiply
20,038,165,178.91x = 27,662,082,685.84 × 11,578,352,533.08 - Step 4: Simplify right side
20,038,165,178.91x = 320,281,345,135,776,497,664 - Step 5: Solve for x
x = 320,281,345,135,776,497,664/20,038,165,178.91 - Step 6: Final answer
x = 15,983,566,473.09
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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.