Finding the Fourth Proportional to 292,421,391.63, 438,628,705.82 and 71,093,985.18
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Solution
The fourth proportional to 292,421,391.63, 438,628,705.82 and 71,093,985.18 is: 106,640,155.62
Step by Step Solution
- Step 1: Write the proportion equation
292,421,391.63 : 438,628,705.82 = 71,093,985.18 : x - Step 2: Convert to fraction form
292,421,391.63/438,628,705.82 = 71,093,985.18/x - Step 3: Cross multiply
292,421,391.63x = 438,628,705.82 × 71,093,985.18 - Step 4: Simplify right side
292,421,391.63x = 31,183,862,711,089,664 - Step 5: Solve for x
x = 31,183,862,711,089,664/292,421,391.63 - Step 6: Final answer
x = 106,640,155.62
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.