Finding the Fourth Proportional to 21,165,349.19, 31,751,178.53 and 7,517,348.96
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Solution
The fourth proportional to 21,165,349.19, 31,751,178.53 and 7,517,348.96 is: 11,277,143.92
Step by Step Solution
- Step 1: Write the proportion equation
21,165,349.19 : 31,751,178.53 = 7,517,348.96 : x - Step 2: Convert to fraction form
21,165,349.19/31,751,178.53 = 7,517,348.96/x - Step 3: Cross multiply
21,165,349.19x = 31,751,178.53 × 7,517,348.96 - Step 4: Simplify right side
21,165,349.19x = 238,684,688,880,374.22 - Step 5: Solve for x
x = 238,684,688,880,374.22/21,165,349.19 - Step 6: Final answer
x = 11,277,143.92
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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.