Finding the Fourth Proportional to 1,170,083,925.60, 1,755,125,888.40 and 393,471,477.60
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Solution
The fourth proportional to 1,170,083,925.60, 1,755,125,888.40 and 393,471,477.60 is: 590,207,216.40
Step by Step Solution
- Step 1: Write the proportion equation
1,170,083,925.60 : 1,755,125,888.40 = 393,471,477.60 : x - Step 2: Convert to fraction form
1,170,083,925.60/1,755,125,888.40 = 393,471,477.60/x - Step 3: Cross multiply
1,170,083,925.60x = 1,755,125,888.40 × 393,471,477.60 - Step 4: Simplify right side
1,170,083,925.60x = 690,591,976,682,760,832 - Step 5: Solve for x
x = 690,591,976,682,760,832/1,170,083,925.60 - Step 6: Final answer
x = 590,207,216.40
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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.