Finding the Fourth Proportional to 15,756,355.10, 21,743,936.16 and 8,880,837.17
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Solution
The fourth proportional to 15,756,355.10, 21,743,936.16 and 8,880,837.17 is: 12,255,648.92
Step by Step Solution
- Step 1: Write the proportion equation
15,756,355.10 : 21,743,936.16 = 8,880,837.17 : x - Step 2: Convert to fraction form
15,756,355.10/21,743,936.16 = 8,880,837.17/x - Step 3: Cross multiply
15,756,355.10x = 21,743,936.16 × 8,880,837.17 - Step 4: Simplify right side
15,756,355.10x = 193,104,356,329,812.22 - Step 5: Solve for x
x = 193,104,356,329,812.22/15,756,355.10 - Step 6: Final answer
x = 12,255,648.92
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.