Finding the Fourth Proportional to 218,017,312.09, 326,894,247.75 and 86,879,761.99
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Solution
The fourth proportional to 218,017,312.09, 326,894,247.75 and 86,879,761.99 is: 130,267,152.49
Step by Step Solution
- Step 1: Write the proportion equation
218,017,312.09 : 326,894,247.75 = 86,879,761.99 : x - Step 2: Convert to fraction form
218,017,312.09/326,894,247.75 = 86,879,761.99/x - Step 3: Cross multiply
218,017,312.09x = 326,894,247.75 × 86,879,761.99 - Step 4: Simplify right side
218,017,312.09x = 28,400,494,439,602,856 - Step 5: Solve for x
x = 28,400,494,439,602,856/218,017,312.09 - Step 6: Final answer
x = 130,267,152.49
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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.