Finding the Fourth Proportional to 308,490,907.35, 425,717,405.94 and 176,334,741.48
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Solution
The fourth proportional to 308,490,907.35, 425,717,405.94 and 176,334,741.48 is: 243,341,916.83
Step by Step Solution
- Step 1: Write the proportion equation
308,490,907.35 : 425,717,405.94 = 176,334,741.48 : x - Step 2: Convert to fraction form
308,490,907.35/425,717,405.94 = 176,334,741.48/x - Step 3: Cross multiply
308,490,907.35x = 425,717,405.94 × 176,334,741.48 - Step 4: Simplify right side
308,490,907.35x = 75,068,768,719,966,112 - Step 5: Solve for x
x = 75,068,768,719,966,112/308,490,907.35 - Step 6: Final answer
x = 243,341,916.83
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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.