Finding the Fourth Proportional to 638,162,277.98, 880,731,649.71 and 374,066,160.62
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Solution
The fourth proportional to 638,162,277.98, 880,731,649.71 and 374,066,160.62 is: 516,250,988.36
Step by Step Solution
- Step 1: Write the proportion equation
638,162,277.98 : 880,731,649.71 = 374,066,160.62 : x - Step 2: Convert to fraction form
638,162,277.98/880,731,649.71 = 374,066,160.62/x - Step 3: Cross multiply
638,162,277.98x = 880,731,649.71 × 374,066,160.62 - Step 4: Simplify right side
638,162,277.98x = 329,451,906,739,134,784 - Step 5: Solve for x
x = 329,451,906,739,134,784/638,162,277.98 - Step 6: Final answer
x = 516,250,988.36
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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.