Finding the Fourth Proportional to 112,331,430.40, 168,497,145.60 and 98,446,604.80
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Solution
The fourth proportional to 112,331,430.40, 168,497,145.60 and 98,446,604.80 is: 147,669,907.20
Step by Step Solution
- Step 1: Write the proportion equation
112,331,430.40 : 168,497,145.60 = 98,446,604.80 : x - Step 2: Convert to fraction form
112,331,430.40/168,497,145.60 = 98,446,604.80/x - Step 3: Cross multiply
112,331,430.40x = 168,497,145.60 × 98,446,604.80 - Step 4: Simplify right side
112,331,430.40x = 16,587,971,902,811,258 - Step 5: Solve for x
x = 16,587,971,902,811,258/112,331,430.40 - Step 6: Final answer
x = 147,669,907.20
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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.