Finding the Fourth Proportional to 21,684,771.88, 29,924,705.99 and 12,392,235.52
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Solution
The fourth proportional to 21,684,771.88, 29,924,705.99 and 12,392,235.52 is: 17,101,125.46
Step by Step Solution
- Step 1: Write the proportion equation
21,684,771.88 : 29,924,705.99 = 12,392,235.52 : x - Step 2: Convert to fraction form
21,684,771.88/29,924,705.99 = 12,392,235.52/x - Step 3: Cross multiply
21,684,771.88x = 29,924,705.99 × 12,392,235.52 - Step 4: Simplify right side
21,684,771.88x = 370,834,004,358,061.81 - Step 5: Solve for x
x = 370,834,004,358,061.81/21,684,771.88 - Step 6: Final answer
x = 17,101,125.46
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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.