Finding the Fourth Proportional to 1,631,687,848.60, 2,447,528,740.26 and 511,297,300.12
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Solution
The fourth proportional to 1,631,687,848.60, 2,447,528,740.26 and 511,297,300.12 is: 766,944,999.89
Step by Step Solution
- Step 1: Write the proportion equation
1,631,687,848.60 : 2,447,528,740.26 = 511,297,300.12 : x - Step 2: Convert to fraction form
1,631,687,848.60/2,447,528,740.26 = 511,297,300.12/x - Step 3: Cross multiply
1,631,687,848.60x = 2,447,528,740.26 × 511,297,300.12 - Step 4: Simplify right side
1,631,687,848.60x = 1,251,414,836,861,042,944 - Step 5: Solve for x
x = 1,251,414,836,861,042,944/1,631,687,848.60 - Step 6: Final answer
x = 766,944,999.89
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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.