Finding the Fourth Proportional to 523,346,491.68, 722,222,935.08 and 288,405,581.76
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Solution
The fourth proportional to 523,346,491.68, 722,222,935.08 and 288,405,581.76 is: 398,002,335.09
Step by Step Solution
- Step 1: Write the proportion equation
523,346,491.68 : 722,222,935.08 = 288,405,581.76 : x - Step 2: Convert to fraction form
523,346,491.68/722,222,935.08 = 288,405,581.76/x - Step 3: Cross multiply
523,346,491.68x = 722,222,935.08 × 288,405,581.76 - Step 4: Simplify right side
523,346,491.68x = 208,293,125,752,162,112 - Step 5: Solve for x
x = 208,293,125,752,162,112/523,346,491.68 - Step 6: Final answer
x = 398,002,335.09
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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.