Finding the Fourth Proportional to 289,291,668.95, 399,225,738.35 and 170,240,581.17
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Solution
The fourth proportional to 289,291,668.95, 399,225,738.35 and 170,240,581.17 is: 234,933,905.84
Step by Step Solution
- Step 1: Write the proportion equation
289,291,668.95 : 399,225,738.35 = 170,240,581.17 : x - Step 2: Convert to fraction form
289,291,668.95/399,225,738.35 = 170,240,581.17/x - Step 3: Cross multiply
289,291,668.95x = 399,225,738.35 × 170,240,581.17 - Step 4: Simplify right side
289,291,668.95x = 67,964,421,715,151,960 - Step 5: Solve for x
x = 67,964,421,715,151,960/289,291,668.95 - Step 6: Final answer
x = 234,933,905.84
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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.