Finding the Fourth Proportional to 86,320,429.80, 129,480,644.70 and 22,495,021.80
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Solution
The fourth proportional to 86,320,429.80, 129,480,644.70 and 22,495,021.80 is: 33,742,532.70
Step by Step Solution
- Step 1: Write the proportion equation
86,320,429.80 : 129,480,644.70 = 22,495,021.80 : x - Step 2: Convert to fraction form
86,320,429.80/129,480,644.70 = 22,495,021.80/x - Step 3: Cross multiply
86,320,429.80x = 129,480,644.70 × 22,495,021.80 - Step 4: Simplify right side
86,320,429.80x = 2,912,669,925,204,554.50 - Step 5: Solve for x
x = 2,912,669,925,204,554.50/86,320,429.80 - Step 6: Final answer
x = 33,742,532.70
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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.