Finding the Fourth Proportional to 520,278,504.84, 780,106,089.60 and 165,599,574.13
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Solution
The fourth proportional to 520,278,504.84, 780,106,089.60 and 165,599,574.13 is: 248,300,160.42
Step by Step Solution
- Step 1: Write the proportion equation
520,278,504.84 : 780,106,089.60 = 165,599,574.13 : x - Step 2: Convert to fraction form
520,278,504.84/780,106,089.60 = 165,599,574.13/x - Step 3: Cross multiply
520,278,504.84x = 780,106,089.60 × 165,599,574.13 - Step 4: Simplify right side
520,278,504.84x = 129,185,236,213,979,616 - Step 5: Solve for x
x = 129,185,236,213,979,616/520,278,504.84 - Step 6: Final answer
x = 248,300,160.42
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.