Finding the Fourth Proportional to 839,808,895.80, 1,259,713,343.70 and 809,197,894.20
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Solution
The fourth proportional to 839,808,895.80, 1,259,713,343.70 and 809,197,894.20 is: 1,213,796,841.30
Step by Step Solution
- Step 1: Write the proportion equation
839,808,895.80 : 1,259,713,343.70 = 809,197,894.20 : x - Step 2: Convert to fraction form
839,808,895.80/1,259,713,343.70 = 809,197,894.20/x - Step 3: Cross multiply
839,808,895.80x = 1,259,713,343.70 × 809,197,894.20 - Step 4: Simplify right side
839,808,895.80x = 1,019,357,385,017,680,896 - Step 5: Solve for x
x = 1,019,357,385,017,680,896/839,808,895.80 - Step 6: Final answer
x = 1,213,796,841.30
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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.