Finding the Fourth Proportional to 212,611,420.80, 298,462,204.80 and 212,611,420.80
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Solution
The fourth proportional to 212,611,420.80, 298,462,204.80 and 212,611,420.80 is: 298,462,204.80
Step by Step Solution
- Step 1: Write the proportion equation
212,611,420.80 : 298,462,204.80 = 212,611,420.80 : x - Step 2: Convert to fraction form
212,611,420.80/298,462,204.80 = 212,611,420.80/x - Step 3: Cross multiply
212,611,420.80x = 298,462,204.80 × 212,611,420.80 - Step 4: Simplify right side
212,611,420.80x = 63,456,473,417,628,584 - Step 5: Solve for x
x = 63,456,473,417,628,584/212,611,420.80 - Step 6: Final answer
x = 298,462,204.80
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Why These Related Problems?
These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.