Finding the Fourth Proportional to 87,808,725.65, 121,175,946.72 and 48,117,224.21
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Solution
The fourth proportional to 87,808,725.65, 121,175,946.72 and 48,117,224.21 is: 66,401,717.53
Step by Step Solution
- Step 1: Write the proportion equation
87,808,725.65 : 121,175,946.72 = 48,117,224.21 : x - Step 2: Convert to fraction form
87,808,725.65/121,175,946.72 = 48,117,224.21/x - Step 3: Cross multiply
87,808,725.65x = 121,175,946.72 × 48,117,224.21 - Step 4: Simplify right side
87,808,725.65x = 5,830,650,197,185,254 - Step 5: Solve for x
x = 5,830,650,197,185,254/87,808,725.65 - Step 6: Final answer
x = 66,401,717.53
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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.