Finding the Fourth Proportional to 69,038,152.09, 103,554,705.82 and 20,514,744.75
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Solution
The fourth proportional to 69,038,152.09, 103,554,705.82 and 20,514,744.75 is: 30,771,367.62
Step by Step Solution
- Step 1: Write the proportion equation
69,038,152.09 : 103,554,705.82 = 20,514,744.75 : x - Step 2: Convert to fraction form
69,038,152.09/103,554,705.82 = 20,514,744.75/x - Step 3: Cross multiply
69,038,152.09x = 103,554,705.82 × 20,514,744.75 - Step 4: Simplify right side
69,038,152.09x = 2,124,398,357,558,639.25 - Step 5: Solve for x
x = 2,124,398,357,558,639.25/69,038,152.09 - Step 6: Final answer
x = 30,771,367.62
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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.