Finding the Fourth Proportional to 400,207,782.88, 551,848,172.16 and 260,719,873.12
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Solution
The fourth proportional to 400,207,782.88, 551,848,172.16 and 260,719,873.12 is: 359,507,714.70
Step by Step Solution
- Step 1: Write the proportion equation
400,207,782.88 : 551,848,172.16 = 260,719,873.12 : x - Step 2: Convert to fraction form
400,207,782.88/551,848,172.16 = 260,719,873.12/x - Step 3: Cross multiply
400,207,782.88x = 551,848,172.16 × 260,719,873.12 - Step 4: Simplify right side
400,207,782.88x = 143,877,785,427,059,104 - Step 5: Solve for x
x = 143,877,785,427,059,104/400,207,782.88 - Step 6: Final answer
x = 359,507,714.70
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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.