Finding the Fourth Proportional to 558,772,835.39, 771,123,983.96 and 320,661,581.08
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Solution
The fourth proportional to 558,772,835.39, 771,123,983.96 and 320,661,581.08 is: 442,523,007.99
Step by Step Solution
- Step 1: Write the proportion equation
558,772,835.39 : 771,123,983.96 = 320,661,581.08 : x - Step 2: Convert to fraction form
558,772,835.39/771,123,983.96 = 320,661,581.08/x - Step 3: Cross multiply
558,772,835.39x = 771,123,983.96 × 320,661,581.08 - Step 4: Simplify right side
558,772,835.39x = 247,269,835,901,791,040 - Step 5: Solve for x
x = 247,269,835,901,791,040/558,772,835.39 - Step 6: Final answer
x = 442,523,007.99
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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.