Finding the Fourth Proportional to 1,088,675,939.80, 1,633,013,909.70 and 398,353,763.80
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Solution
The fourth proportional to 1,088,675,939.80, 1,633,013,909.70 and 398,353,763.80 is: 597,530,645.70
Step by Step Solution
- Step 1: Write the proportion equation
1,088,675,939.80 : 1,633,013,909.70 = 398,353,763.80 : x - Step 2: Convert to fraction form
1,088,675,939.80/1,633,013,909.70 = 398,353,763.80/x - Step 3: Cross multiply
1,088,675,939.80x = 1,633,013,909.70 × 398,353,763.80 - Step 4: Simplify right side
1,088,675,939.80x = 650,517,237,266,748,416 - Step 5: Solve for x
x = 650,517,237,266,748,416/1,088,675,939.80 - Step 6: Final answer
x = 597,530,645.70
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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.