Finding the Fourth Proportional to 208,513,419.14, 310,927,889.01 and 206,641,895.69
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Solution
The fourth proportional to 208,513,419.14, 310,927,889.01 and 206,641,895.69 is: 308,137,138.96
Step by Step Solution
- Step 1: Write the proportion equation
208,513,419.14 : 310,927,889.01 = 206,641,895.69 : x - Step 2: Convert to fraction form
208,513,419.14/310,927,889.01 = 206,641,895.69/x - Step 3: Cross multiply
208,513,419.14x = 310,927,889.01 × 206,641,895.69 - Step 4: Simplify right side
208,513,419.14x = 64,250,728,408,597,952 - Step 5: Solve for x
x = 64,250,728,408,597,952/208,513,419.14 - Step 6: Final answer
x = 308,137,138.96
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.