Finding the Fourth Proportional to 76,989,894.24, 106,210,439.78 and 68,178,325.44
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Solution
The fourth proportional to 76,989,894.24, 106,210,439.78 and 68,178,325.44 is: 94,054,550.92
Step by Step Solution
- Step 1: Write the proportion equation
76,989,894.24 : 106,210,439.78 = 68,178,325.44 : x - Step 2: Convert to fraction form
76,989,894.24/106,210,439.78 = 68,178,325.44/x - Step 3: Cross multiply
76,989,894.24x = 106,210,439.78 × 68,178,325.44 - Step 4: Simplify right side
76,989,894.24x = 7,241,249,928,446,362 - Step 5: Solve for x
x = 7,241,249,928,446,362/76,989,894.24 - Step 6: Final answer
x = 94,054,550.92
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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.