Finding the Fourth Proportional to 70,696,902.64, 97,560,796.32 and 39,757,063.60
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Solution
The fourth proportional to 70,696,902.64, 97,560,796.32 and 39,757,063.60 is: 54,864,225.15
Step by Step Solution
- Step 1: Write the proportion equation
70,696,902.64 : 97,560,796.32 = 39,757,063.60 : x - Step 2: Convert to fraction form
70,696,902.64/97,560,796.32 = 39,757,063.60/x - Step 3: Cross multiply
70,696,902.64x = 97,560,796.32 × 39,757,063.60 - Step 4: Simplify right side
70,696,902.64x = 3,878,730,784,160,886 - Step 5: Solve for x
x = 3,878,730,784,160,886/70,696,902.64 - Step 6: Final answer
x = 54,864,225.15
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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.