Finding the Fourth Proportional to 1,173,581,702.40, 1,760,372,553.60 and 355,587,715.20
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Solution
The fourth proportional to 1,173,581,702.40, 1,760,372,553.60 and 355,587,715.20 is: 533,381,572.80
Step by Step Solution
- Step 1: Write the proportion equation
1,173,581,702.40 : 1,760,372,553.60 = 355,587,715.20 : x - Step 2: Convert to fraction form
1,173,581,702.40/1,760,372,553.60 = 355,587,715.20/x - Step 3: Cross multiply
1,173,581,702.40x = 1,760,372,553.60 × 355,587,715.20 - Step 4: Simplify right side
1,173,581,702.40x = 625,966,854,235,413,504 - Step 5: Solve for x
x = 625,966,854,235,413,504/1,173,581,702.40 - Step 6: Final answer
x = 533,381,572.80
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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.