Finding the Fourth Proportional to 806,707,471.80, 1,210,061,207.70 and 788,791,567.80
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Solution
The fourth proportional to 806,707,471.80, 1,210,061,207.70 and 788,791,567.80 is: 1,183,187,351.70
Step by Step Solution
- Step 1: Write the proportion equation
806,707,471.80 : 1,210,061,207.70 = 788,791,567.80 : x - Step 2: Convert to fraction form
806,707,471.80/1,210,061,207.70 = 788,791,567.80/x - Step 3: Cross multiply
806,707,471.80x = 1,210,061,207.70 × 788,791,567.80 - Step 4: Simplify right side
806,707,471.80x = 954,486,077,155,644,416 - Step 5: Solve for x
x = 954,486,077,155,644,416/806,707,471.80 - Step 6: Final answer
x = 1,183,187,351.70
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Similar ratio
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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.