Finding the Fourth Proportional to 319,117,107.16, 477,693,891.84 and 208,213,975.36
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Solution
The fourth proportional to 319,117,107.16, 477,693,891.84 and 208,213,975.36 is: 311,680,389.40
Step by Step Solution
- Step 1: Write the proportion equation
319,117,107.16 : 477,693,891.84 = 208,213,975.36 : x - Step 2: Convert to fraction form
319,117,107.16/477,693,891.84 = 208,213,975.36/x - Step 3: Cross multiply
319,117,107.16x = 477,693,891.84 × 208,213,975.36 - Step 4: Simplify right side
319,117,107.16x = 99,462,544,225,196,272 - Step 5: Solve for x
x = 99,462,544,225,196,272/319,117,107.16 - Step 6: Final answer
x = 311,680,389.40
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.