Finding the Fourth Proportional to 724,643,125.80, 1,086,964,688.70 and 336,336,901.80
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Solution
The fourth proportional to 724,643,125.80, 1,086,964,688.70 and 336,336,901.80 is: 504,505,352.70
Step by Step Solution
- Step 1: Write the proportion equation
724,643,125.80 : 1,086,964,688.70 = 336,336,901.80 : x - Step 2: Convert to fraction form
724,643,125.80/1,086,964,688.70 = 336,336,901.80/x - Step 3: Cross multiply
724,643,125.80x = 1,086,964,688.70 × 336,336,901.80 - Step 4: Simplify right side
724,643,125.80x = 365,586,335,763,359,488 - Step 5: Solve for x
x = 365,586,335,763,359,488/724,643,125.80 - Step 6: Final answer
x = 504,505,352.70
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Double scale
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Similar ratio
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1.5x scale
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.