Finding the Fourth Proportional to 803,105,437.80, 1,204,403,063.94 and 257,719,425.96
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Solution
The fourth proportional to 803,105,437.80, 1,204,403,063.94 and 257,719,425.96 is: 386,497,278.76
Step by Step Solution
- Step 1: Write the proportion equation
803,105,437.80 : 1,204,403,063.94 = 257,719,425.96 : x - Step 2: Convert to fraction form
803,105,437.80/1,204,403,063.94 = 257,719,425.96/x - Step 3: Cross multiply
803,105,437.80x = 1,204,403,063.94 × 257,719,425.96 - Step 4: Simplify right side
803,105,437.80x = 310,398,066,263,081,984 - Step 5: Solve for x
x = 310,398,066,263,081,984/803,105,437.80 - Step 6: Final answer
x = 386,497,278.76
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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.