Finding the Fourth Proportional to 1,561,889,169.60, 2,341,186,583.76 and 512,353,312.80
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Solution
The fourth proportional to 1,561,889,169.60, 2,341,186,583.76 and 512,353,312.80 is: 767,989,640.63
Step by Step Solution
- Step 1: Write the proportion equation
1,561,889,169.60 : 2,341,186,583.76 = 512,353,312.80 : x - Step 2: Convert to fraction form
1,561,889,169.60/2,341,186,583.76 = 512,353,312.80/x - Step 3: Cross multiply
1,561,889,169.60x = 2,341,186,583.76 × 512,353,312.80 - Step 4: Simplify right side
1,561,889,169.60x = 1,199,514,702,072,350,720 - Step 5: Solve for x
x = 1,199,514,702,072,350,720/1,561,889,169.60 - Step 6: Final answer
x = 767,989,640.63
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.