Finding the Fourth Proportional to 71,021,816.40, 97,982,218.80 and 41,247,395.76
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Solution
The fourth proportional to 71,021,816.40, 97,982,218.80 and 41,247,395.76 is: 56,905,209.71
Step by Step Solution
- Step 1: Write the proportion equation
71,021,816.40 : 97,982,218.80 = 41,247,395.76 : x - Step 2: Convert to fraction form
71,021,816.40/97,982,218.80 = 41,247,395.76/x - Step 3: Cross multiply
71,021,816.40x = 97,982,218.80 × 41,247,395.76 - Step 4: Simplify right side
71,021,816.40x = 4,041,511,356,286,512 - Step 5: Solve for x
x = 4,041,511,356,286,512/71,021,816.40 - Step 6: Final answer
x = 56,905,209.71
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.