Finding the Fourth Proportional to 1,280,451,937.09, 1,766,482,592.64 and 857,201,962.93
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Solution
The fourth proportional to 1,280,451,937.09, 1,766,482,592.64 and 857,201,962.93 is: 1,182,576,481.03
Step by Step Solution
- Step 1: Write the proportion equation
1,280,451,937.09 : 1,766,482,592.64 = 857,201,962.93 : x - Step 2: Convert to fraction form
1,280,451,937.09/1,766,482,592.64 = 857,201,962.93/x - Step 3: Cross multiply
1,280,451,937.09x = 1,766,482,592.64 × 857,201,962.93 - Step 4: Simplify right side
1,280,451,937.09x = 1,514,232,345,892,683,520 - Step 5: Solve for x
x = 1,514,232,345,892,683,520/1,280,451,937.09 - Step 6: Final answer
x = 1,182,576,481.03
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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.