Finding the Fourth Proportional to 76,989,900.48, 106,210,448.42 and 68,178,331.68
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Solution
The fourth proportional to 76,989,900.48, 106,210,448.42 and 68,178,331.68 is: 94,054,559.56
Step by Step Solution
- Step 1: Write the proportion equation
76,989,900.48 : 106,210,448.42 = 68,178,331.68 : x - Step 2: Convert to fraction form
76,989,900.48/106,210,448.42 = 68,178,331.68/x - Step 3: Cross multiply
76,989,900.48x = 106,210,448.42 × 68,178,331.68 - Step 4: Simplify right side
76,989,900.48x = 7,241,251,179,919,401 - Step 5: Solve for x
x = 7,241,251,179,919,401/76,989,900.48 - Step 6: Final answer
x = 94,054,559.56
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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.