Finding the Fourth Proportional to 108,280,343.43, 149,433,193.89 and 61,241,587.09
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Solution
The fourth proportional to 108,280,343.43, 149,433,193.89 and 61,241,587.09 is: 84,516,964.65
Step by Step Solution
- Step 1: Write the proportion equation
108,280,343.43 : 149,433,193.89 = 61,241,587.09 : x - Step 2: Convert to fraction form
108,280,343.43/149,433,193.89 = 61,241,587.09/x - Step 3: Cross multiply
108,280,343.43x = 149,433,193.89 × 61,241,587.09 - Step 4: Simplify right side
108,280,343.43x = 9,151,525,957,751,290 - Step 5: Solve for x
x = 9,151,525,957,751,290/108,280,343.43 - Step 6: Final answer
x = 84,516,964.65
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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.