Finding the Fourth Proportional to 5,313,947,991.56, 7,967,838,181.96 and 2,515,893,045.12
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Solution
The fourth proportional to 5,313,947,991.56, 7,967,838,181.96 and 2,515,893,045.12 is: 3,772,379,537.49
Step by Step Solution
- Step 1: Write the proportion equation
5,313,947,991.56 : 7,967,838,181.96 = 2,515,893,045.12 : x - Step 2: Convert to fraction form
5,313,947,991.56/7,967,838,181.96 = 2,515,893,045.12/x - Step 3: Cross multiply
5,313,947,991.56x = 7,967,838,181.96 × 2,515,893,045.12 - Step 4: Simplify right side
5,313,947,991.56x = 20,046,228,666,634,747,904 - Step 5: Solve for x
x = 20,046,228,666,634,747,904/5,313,947,991.56 - Step 6: Final answer
x = 3,772,379,537.49
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1.5x scale
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.