Finding the Fourth Proportional to 84,587,450.70, 126,739,458.45 and 72,399,737.10
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Solution
The fourth proportional to 84,587,450.70, 126,739,458.45 and 72,399,737.10 is: 108,478,307.31
Step by Step Solution
- Step 1: Write the proportion equation
84,587,450.70 : 126,739,458.45 = 72,399,737.10 : x - Step 2: Convert to fraction form
84,587,450.70/126,739,458.45 = 72,399,737.10/x - Step 3: Cross multiply
84,587,450.70x = 126,739,458.45 × 72,399,737.10 - Step 4: Simplify right side
84,587,450.70x = 9,175,903,471,976,372 - Step 5: Solve for x
x = 9,175,903,471,976,372/84,587,450.70 - Step 6: Final answer
x = 108,478,307.31
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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.