Finding the Fourth Proportional to 166,436,558.20, 249,654,837.30 and 115,376,231.80
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Solution
The fourth proportional to 166,436,558.20, 249,654,837.30 and 115,376,231.80 is: 173,064,347.70
Step by Step Solution
- Step 1: Write the proportion equation
166,436,558.20 : 249,654,837.30 = 115,376,231.80 : x - Step 2: Convert to fraction form
166,436,558.20/249,654,837.30 = 115,376,231.80/x - Step 3: Cross multiply
166,436,558.20x = 249,654,837.30 × 115,376,231.80 - Step 4: Simplify right side
166,436,558.20x = 28,804,234,378,316,088 - Step 5: Solve for x
x = 28,804,234,378,316,088/166,436,558.20 - Step 6: Final answer
x = 173,064,347.70
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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.