Finding the Fourth Proportional to 21,974,536.32, 30,323,381.94 and 12,184,618.08
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Solution
The fourth proportional to 21,974,536.32, 30,323,381.94 and 12,184,618.08 is: 16,813,953.32
Step by Step Solution
- Step 1: Write the proportion equation
21,974,536.32 : 30,323,381.94 = 12,184,618.08 : x - Step 2: Convert to fraction form
21,974,536.32/30,323,381.94 = 12,184,618.08/x - Step 3: Cross multiply
21,974,536.32x = 30,323,381.94 × 12,184,618.08 - Step 4: Simplify right side
21,974,536.32x = 369,478,827,946,582.19 - Step 5: Solve for x
x = 369,478,827,946,582.19/21,974,536.32 - Step 6: Final answer
x = 16,813,953.32
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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.