Finding the Fourth Proportional to 7,668,123.60, 11,497,811.40 and 2,875,969.20
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Solution
The fourth proportional to 7,668,123.60, 11,497,811.40 and 2,875,969.20 is: 4,312,313.31
Step by Step Solution
- Step 1: Write the proportion equation
7,668,123.60 : 11,497,811.40 = 2,875,969.20 : x - Step 2: Convert to fraction form
7,668,123.60/11,497,811.40 = 2,875,969.20/x - Step 3: Cross multiply
7,668,123.60x = 11,497,811.40 × 2,875,969.20 - Step 4: Simplify right side
7,668,123.60x = 33,067,351,453,808.88 - Step 5: Solve for x
x = 33,067,351,453,808.88/7,668,123.60 - Step 6: Final answer
x = 4,312,313.31
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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.