Finding the Fourth Proportional to 513,529,617.78, 708,305,543.06 and 471,279,612.40
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Solution
The fourth proportional to 513,529,617.78, 708,305,543.06 and 471,279,612.40 is: 650,030,592.66
Step by Step Solution
- Step 1: Write the proportion equation
513,529,617.78 : 708,305,543.06 = 471,279,612.40 : x - Step 2: Convert to fraction form
513,529,617.78/708,305,543.06 = 471,279,612.40/x - Step 3: Cross multiply
513,529,617.78x = 708,305,543.06 × 471,279,612.40 - Step 4: Simplify right side
513,529,617.78x = 333,809,961,794,593,152 - Step 5: Solve for x
x = 333,809,961,794,593,152/513,529,617.78 - Step 6: Final answer
x = 650,030,592.66
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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.