Finding the Fourth Proportional to 77,995,015.42, 107,745,234.03 and 62,293,424.99
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Solution
The fourth proportional to 77,995,015.42, 107,745,234.03 and 62,293,424.99 is: 86,054,469.22
Step by Step Solution
- Step 1: Write the proportion equation
77,995,015.42 : 107,745,234.03 = 62,293,424.99 : x - Step 2: Convert to fraction form
77,995,015.42/107,745,234.03 = 62,293,424.99/x - Step 3: Cross multiply
77,995,015.42x = 107,745,234.03 × 62,293,424.99 - Step 4: Simplify right side
77,995,015.42x = 6,711,819,653,766,334 - Step 5: Solve for x
x = 6,711,819,653,766,334/77,995,015.42 - Step 6: Final answer
x = 86,054,469.22
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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.