Finding the Fourth Proportional to 705,640,695.53, 973,807,944.81 and 388,125,498.62
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Solution
The fourth proportional to 705,640,695.53, 973,807,944.81 and 388,125,498.62 is: 535,626,270.62
Step by Step Solution
- Step 1: Write the proportion equation
705,640,695.53 : 973,807,944.81 = 388,125,498.62 : x - Step 2: Convert to fraction form
705,640,695.53/973,807,944.81 = 388,125,498.62/x - Step 3: Cross multiply
705,640,695.53x = 973,807,944.81 × 388,125,498.62 - Step 4: Simplify right side
705,640,695.53x = 377,959,694,140,481,600 - Step 5: Solve for x
x = 377,959,694,140,481,600/705,640,695.53 - Step 6: Final answer
x = 535,626,270.62
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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.