Finding the Fourth Proportional to 21,135,389.92, 31,693,091.64 and 8,187,605.08
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Solution
The fourth proportional to 21,135,389.92, 31,693,091.64 and 8,187,605.08 is: 12,277,536.35
Step by Step Solution
- Step 1: Write the proportion equation
21,135,389.92 : 31,693,091.64 = 8,187,605.08 : x - Step 2: Convert to fraction form
21,135,389.92/31,693,091.64 = 8,187,605.08/x - Step 3: Cross multiply
21,135,389.92x = 31,693,091.64 × 8,187,605.08 - Step 4: Simplify right side
21,135,389.92x = 259,490,518,112,569.53 - Step 5: Solve for x
x = 259,490,518,112,569.53/21,135,389.92 - Step 6: Final answer
x = 12,277,536.35
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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.