Finding the Fourth Proportional to 112,515,076,506.60, 155,265,103,492.74 and 66,791,306,368.44
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Solution
The fourth proportional to 112,515,076,506.60, 155,265,103,492.74 and 66,791,306,368.44 is: 92,168,617,910.53
Step by Step Solution
- Step 1: Write the proportion equation
112,515,076,506.60 : 155,265,103,492.74 = 66,791,306,368.44 : x - Step 2: Convert to fraction form
112,515,076,506.60/155,265,103,492.74 = 66,791,306,368.44/x - Step 3: Cross multiply
112,515,076,506.60x = 155,265,103,492.74 × 66,791,306,368.44 - Step 4: Simplify right side
112,515,076,506.60x = 10,370,359,095,711,139,627,008 - Step 5: Solve for x
x = 10,370,359,095,711,139,627,008/112,515,076,506.60 - Step 6: Final answer
x = 92,168,617,910.53
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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.