Finding the Fourth Proportional to 1,026,593,464.80, 1,539,701,240.40 and 637,720,370.40
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Solution
The fourth proportional to 1,026,593,464.80, 1,539,701,240.40 and 637,720,370.40 is: 956,463,175.54
Step by Step Solution
- Step 1: Write the proportion equation
1,026,593,464.80 : 1,539,701,240.40 = 637,720,370.40 : x - Step 2: Convert to fraction form
1,026,593,464.80/1,539,701,240.40 = 637,720,370.40/x - Step 3: Cross multiply
1,026,593,464.80x = 1,539,701,240.40 × 637,720,370.40 - Step 4: Simplify right side
1,026,593,464.80x = 981,898,845,333,227,520 - Step 5: Solve for x
x = 981,898,845,333,227,520/1,026,593,464.80 - Step 6: Final answer
x = 956,463,175.54
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1.5x scale
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.