Finding the Fourth Proportional to 19,941,807.60, 29,889,091.80 and 14,887,213.20
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Solution
The fourth proportional to 19,941,807.60, 29,889,091.80 and 14,887,213.20 is: 22,313,186.99
Step by Step Solution
- Step 1: Write the proportion equation
19,941,807.60 : 29,889,091.80 = 14,887,213.20 : x - Step 2: Convert to fraction form
19,941,807.60/29,889,091.80 = 14,887,213.20/x - Step 3: Cross multiply
19,941,807.60x = 29,889,091.80 × 14,887,213.20 - Step 4: Simplify right side
19,941,807.60x = 444,965,281,980,971.75 - Step 5: Solve for x
x = 444,965,281,980,971.75/19,941,807.60 - Step 6: Final answer
x = 22,313,186.99
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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.