Finding the Fourth Proportional to 723,991,362.49, 1,085,997,132.87 and 206,421,802.97
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Solution
The fourth proportional to 723,991,362.49, 1,085,997,132.87 and 206,421,802.97 is: 309,635,581.02
Step by Step Solution
- Step 1: Write the proportion equation
723,991,362.49 : 1,085,997,132.87 = 206,421,802.97 : x - Step 2: Convert to fraction form
723,991,362.49/1,085,997,132.87 = 206,421,802.97/x - Step 3: Cross multiply
723,991,362.49x = 1,085,997,132.87 × 206,421,802.97 - Step 4: Simplify right side
723,991,362.49x = 224,173,486,180,813,952 - Step 5: Solve for x
x = 224,173,486,180,813,952/723,991,362.49 - Step 6: Final answer
x = 309,635,581.02
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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.