Finding the Fourth Proportional to 64,355,969.40, 88,812,989.64 and 34,989,277.92
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Solution
The fourth proportional to 64,355,969.40, 88,812,989.64 and 34,989,277.92 is: 48,286,155.99
Step by Step Solution
- Step 1: Write the proportion equation
64,355,969.40 : 88,812,989.64 = 34,989,277.92 : x - Step 2: Convert to fraction form
64,355,969.40/88,812,989.64 = 34,989,277.92/x - Step 3: Cross multiply
64,355,969.40x = 88,812,989.64 × 34,989,277.92 - Step 4: Simplify right side
64,355,969.40x = 3,107,502,377,420,041 - Step 5: Solve for x
x = 3,107,502,377,420,041/64,355,969.40 - Step 6: Final answer
x = 48,286,155.99
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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.