Finding the Fourth Proportional to 870,434,611.75, 1,201,194,647.84 and 473,956,652
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Solution
The fourth proportional to 870,434,611.75, 1,201,194,647.84 and 473,956,652 is: 654,057,393.86
Step by Step Solution
- Step 1: Write the proportion equation
870,434,611.75 : 1,201,194,647.84 = 473,956,652 : x - Step 2: Convert to fraction form
870,434,611.75/1,201,194,647.84 = 473,956,652/x - Step 3: Cross multiply
870,434,611.75x = 1,201,194,647.84 × 473,956,652 - Step 4: Simplify right side
870,434,611.75x = 569,314,193,690,565,376 - Step 5: Solve for x
x = 569,314,193,690,565,376/870,434,611.75 - Step 6: Final answer
x = 654,057,393.86
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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.