Finding the Fourth Proportional to 1,990,657,702.40, 2,985,986,553.60 and 1,668,171,430.40
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Solution
The fourth proportional to 1,990,657,702.40, 2,985,986,553.60 and 1,668,171,430.40 is: 2,502,257,145.60
Step by Step Solution
- Step 1: Write the proportion equation
1,990,657,702.40 : 2,985,986,553.60 = 1,668,171,430.40 : x - Step 2: Convert to fraction form
1,990,657,702.40/2,985,986,553.60 = 1,668,171,430.40/x - Step 3: Cross multiply
1,990,657,702.40x = 2,985,986,553.60 × 1,668,171,430.40 - Step 4: Simplify right side
1,990,657,702.40x = 4,981,137,460,274,078,720 - Step 5: Solve for x
x = 4,981,137,460,274,078,720/1,990,657,702.40 - Step 6: Final answer
x = 2,502,257,145.60
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.