Finding the Fourth Proportional to 636,580,455.84, 878,330,756.13 and 535,123,867.97
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Solution
The fourth proportional to 636,580,455.84, 878,330,756.13 and 535,123,867.97 is: 738,344,614.99
Step by Step Solution
- Step 1: Write the proportion equation
636,580,455.84 : 878,330,756.13 = 535,123,867.97 : x - Step 2: Convert to fraction form
636,580,455.84/878,330,756.13 = 535,123,867.97/x - Step 3: Cross multiply
636,580,455.84x = 878,330,756.13 × 535,123,867.97 - Step 4: Simplify right side
636,580,455.84x = 470,015,751,580,512,960 - Step 5: Solve for x
x = 470,015,751,580,512,960/636,580,455.84 - Step 6: Final answer
x = 738,344,614.99
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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.