Finding the Fourth Proportional to 808,704,895.80, 1,213,057,343.70 and 674,335,615.80
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Solution
The fourth proportional to 808,704,895.80, 1,213,057,343.70 and 674,335,615.80 is: 1,011,503,423.70
Step by Step Solution
- Step 1: Write the proportion equation
808,704,895.80 : 1,213,057,343.70 = 674,335,615.80 : x - Step 2: Convert to fraction form
808,704,895.80/1,213,057,343.70 = 674,335,615.80/x - Step 3: Cross multiply
808,704,895.80x = 1,213,057,343.70 × 674,335,615.80 - Step 4: Simplify right side
808,704,895.80x = 818,007,770,864,651,776 - Step 5: Solve for x
x = 818,007,770,864,651,776/808,704,895.80 - Step 6: Final answer
x = 1,011,503,423.70
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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.