Finding the Fourth Proportional to 87,808,733.56, 121,175,957.64 and 48,117,232.18
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Solution
The fourth proportional to 87,808,733.56, 121,175,957.64 and 48,117,232.18 is: 66,401,728.53
Step by Step Solution
- Step 1: Write the proportion equation
87,808,733.56 : 121,175,957.64 = 48,117,232.18 : x - Step 2: Convert to fraction form
87,808,733.56/121,175,957.64 = 48,117,232.18/x - Step 3: Cross multiply
87,808,733.56x = 121,175,957.64 × 48,117,232.18 - Step 4: Simplify right side
87,808,733.56x = 5,830,651,688,397,725 - Step 5: Solve for x
x = 5,830,651,688,397,725/87,808,733.56 - Step 6: Final answer
x = 66,401,728.53
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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.