Finding the Fourth Proportional to 57,306,424.95, 79,132,020.12 and 55,453,326.03
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Solution
The fourth proportional to 57,306,424.95, 79,132,020.12 and 55,453,326.03 is: 76,573,154.14
Step by Step Solution
- Step 1: Write the proportion equation
57,306,424.95 : 79,132,020.12 = 55,453,326.03 : x - Step 2: Convert to fraction form
57,306,424.95/79,132,020.12 = 55,453,326.03/x - Step 3: Cross multiply
57,306,424.95x = 79,132,020.12 × 55,453,326.03 - Step 4: Simplify right side
57,306,424.95x = 4,388,133,711,126,880 - Step 5: Solve for x
x = 4,388,133,711,126,880/57,306,424.95 - Step 6: Final answer
x = 76,573,154.14
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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.