Finding the Fourth Proportional to 936,626,386.20, 1,292,543,403.20 and 513,250,370.88
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Solution
The fourth proportional to 936,626,386.20, 1,292,543,403.20 and 513,250,370.88 is: 708,284,958.49
Step by Step Solution
- Step 1: Write the proportion equation
936,626,386.20 : 1,292,543,403.20 = 513,250,370.88 : x - Step 2: Convert to fraction form
936,626,386.20/1,292,543,403.20 = 513,250,370.88/x - Step 3: Cross multiply
936,626,386.20x = 1,292,543,403.20 × 513,250,370.88 - Step 4: Simplify right side
936,626,386.20x = 663,398,381,070,897,408 - Step 5: Solve for x
x = 663,398,381,070,897,408/936,626,386.20 - Step 6: Final answer
x = 708,284,958.49
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.