Finding the Fourth Proportional to 817,865,311.41, 1,136,273,715.36 and 808,058,729.70
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Solution
The fourth proportional to 817,865,311.41, 1,136,273,715.36 and 808,058,729.70 is: 1,122,649,270.26
Step by Step Solution
- Step 1: Write the proportion equation
817,865,311.41 : 1,136,273,715.36 = 808,058,729.70 : x - Step 2: Convert to fraction form
817,865,311.41/1,136,273,715.36 = 808,058,729.70/x - Step 3: Cross multiply
817,865,311.41x = 1,136,273,715.36 × 808,058,729.70 - Step 4: Simplify right side
817,865,311.41x = 918,175,895,025,300,992 - Step 5: Solve for x
x = 918,175,895,025,300,992/817,865,311.41 - Step 6: Final answer
x = 1,122,649,270.26
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.