Finding the Fourth Proportional to 1,545,324,388.84, 2,133,102,359.63 and 918,791,322.11
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Solution
The fourth proportional to 1,545,324,388.84, 2,133,102,359.63 and 918,791,322.11 is: 1,268,261,829.91
Step by Step Solution
- Step 1: Write the proportion equation
1,545,324,388.84 : 2,133,102,359.63 = 918,791,322.11 : x - Step 2: Convert to fraction form
1,545,324,388.84/2,133,102,359.63 = 918,791,322.11/x - Step 3: Cross multiply
1,545,324,388.84x = 2,133,102,359.63 × 918,791,322.11 - Step 4: Simplify right side
1,545,324,388.84x = 1,959,875,937,185,148,928 - Step 5: Solve for x
x = 1,959,875,937,185,148,928/1,545,324,388.84 - Step 6: Final answer
x = 1,268,261,829.91
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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.