Finding the Fourth Proportional to 154,327,234.06, 212,971,816.28 and 83,762,869.57
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Solution
The fourth proportional to 154,327,234.06, 212,971,816.28 and 83,762,869.57 is: 115,592,886.62
Step by Step Solution
- Step 1: Write the proportion equation
154,327,234.06 : 212,971,816.28 = 83,762,869.57 : x - Step 2: Convert to fraction form
154,327,234.06/212,971,816.28 = 83,762,869.57/x - Step 3: Cross multiply
154,327,234.06x = 212,971,816.28 × 83,762,869.57 - Step 4: Simplify right side
154,327,234.06x = 17,839,130,468,824,620 - Step 5: Solve for x
x = 17,839,130,468,824,620/154,327,234.06 - Step 6: Final answer
x = 115,592,886.62
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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.