Finding the Fourth Proportional to 77,628,991.68, 107,128,307.70 and 42,821,180.82
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Solution
The fourth proportional to 77,628,991.68, 107,128,307.70 and 42,821,180.82 is: 59,093,394.56
Step by Step Solution
- Step 1: Write the proportion equation
77,628,991.68 : 107,128,307.70 = 42,821,180.82 : x - Step 2: Convert to fraction form
77,628,991.68/107,128,307.70 = 42,821,180.82/x - Step 3: Cross multiply
77,628,991.68x = 107,128,307.70 × 42,821,180.82 - Step 4: Simplify right side
77,628,991.68x = 4,587,360,634,962,298 - Step 5: Solve for x
x = 4,587,360,634,962,298/77,628,991.68 - Step 6: Final answer
x = 59,093,394.56
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.