Finding the Fourth Proportional to 1,488,328,361.68, 2,232,016,431.81 and 492,164,339.62
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Solution
The fourth proportional to 1,488,328,361.68, 2,232,016,431.81 and 492,164,339.62 is: 738,089,067.89
Step by Step Solution
- Step 1: Write the proportion equation
1,488,328,361.68 : 2,232,016,431.81 = 492,164,339.62 : x - Step 2: Convert to fraction form
1,488,328,361.68/2,232,016,431.81 = 492,164,339.62/x - Step 3: Cross multiply
1,488,328,361.68x = 2,232,016,431.81 × 492,164,339.62 - Step 4: Simplify right side
1,488,328,361.68x = 1,098,518,893,182,757,376 - Step 5: Solve for x
x = 1,098,518,893,182,757,376/1,488,328,361.68 - Step 6: Final answer
x = 738,089,067.89
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1.5x scale
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.