Finding the Fourth Proportional to 289,325,313.48, 399,221,602.98 and 170,348,168.19
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Solution
The fourth proportional to 289,325,313.48, 399,221,602.98 and 170,348,168.19 is: 235,052,605.50
Step by Step Solution
- Step 1: Write the proportion equation
289,325,313.48 : 399,221,602.98 = 170,348,168.19 : x - Step 2: Convert to fraction form
289,325,313.48/399,221,602.98 = 170,348,168.19/x - Step 3: Cross multiply
289,325,313.48x = 399,221,602.98 × 170,348,168.19 - Step 4: Simplify right side
289,325,313.48x = 68,006,668,769,518,448 - Step 5: Solve for x
x = 68,006,668,769,518,448/289,325,313.48 - Step 6: Final answer
x = 235,052,605.50
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1.5x scale
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.