Finding the Fourth Proportional to 48,389,117.80, 72,583,676.70 and 39,991,037.80
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Solution
The fourth proportional to 48,389,117.80, 72,583,676.70 and 39,991,037.80 is: 59,986,556.70
Step by Step Solution
- Step 1: Write the proportion equation
48,389,117.80 : 72,583,676.70 = 39,991,037.80 : x - Step 2: Convert to fraction form
48,389,117.80/72,583,676.70 = 39,991,037.80/x - Step 3: Cross multiply
48,389,117.80x = 72,583,676.70 × 39,991,037.80 - Step 4: Simplify right side
48,389,117.80x = 2,902,696,558,572,679 - Step 5: Solve for x
x = 2,902,696,558,572,679/48,389,117.80 - Step 6: Final answer
x = 59,986,556.70
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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.