Finding the Fourth Proportional to 817,865,318.16, 1,136,273,724.74 and 808,058,736.45
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Solution
The fourth proportional to 817,865,318.16, 1,136,273,724.74 and 808,058,736.45 is: 1,122,649,279.64
Step by Step Solution
- Step 1: Write the proportion equation
817,865,318.16 : 1,136,273,724.74 = 808,058,736.45 : x - Step 2: Convert to fraction form
817,865,318.16/1,136,273,724.74 = 808,058,736.45/x - Step 3: Cross multiply
817,865,318.16x = 1,136,273,724.74 × 808,058,736.45 - Step 4: Simplify right side
817,865,318.16x = 918,175,910,276,759,808 - Step 5: Solve for x
x = 918,175,910,276,759,808/817,865,318.16 - Step 6: Final answer
x = 1,122,649,279.64
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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.