Finding the Fourth Proportional to 20,151,841.34, 30,209,860.80 and 7,852,957.68
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Solution
The fourth proportional to 20,151,841.34, 30,209,860.80 and 7,852,957.68 is: 11,772,460.61
Step by Step Solution
- Step 1: Write the proportion equation
20,151,841.34 : 30,209,860.80 = 7,852,957.68 : x - Step 2: Convert to fraction form
20,151,841.34/30,209,860.80 = 7,852,957.68/x - Step 3: Cross multiply
20,151,841.34x = 30,209,860.80 × 7,852,957.68 - Step 4: Simplify right side
20,151,841.34x = 237,236,758,381,090.94 - Step 5: Solve for x
x = 237,236,758,381,090.94/20,151,841.34 - Step 6: Final answer
x = 11,772,460.61
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.