Finding the Fourth Proportional to 212,127,602.20, 318,204,852.32 and 66,566,908.74
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Solution
The fourth proportional to 212,127,602.20, 318,204,852.32 and 66,566,908.74 is: 99,854,583.49
Step by Step Solution
- Step 1: Write the proportion equation
212,127,602.20 : 318,204,852.32 = 66,566,908.74 : x - Step 2: Convert to fraction form
212,127,602.20/318,204,852.32 = 66,566,908.74/x - Step 3: Cross multiply
212,127,602.20x = 318,204,852.32 × 66,566,908.74 - Step 4: Simplify right side
212,127,602.20x = 21,181,913,365,010,616 - Step 5: Solve for x
x = 21,181,913,365,010,616/212,127,602.20 - Step 6: Final answer
x = 99,854,583.49
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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.