Finding the Fourth Proportional to 839,808,110.80, 1,259,712,166.20 and 809,197,109.20
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Solution
The fourth proportional to 839,808,110.80, 1,259,712,166.20 and 809,197,109.20 is: 1,213,795,663.80
Step by Step Solution
- Step 1: Write the proportion equation
839,808,110.80 : 1,259,712,166.20 = 809,197,109.20 : x - Step 2: Convert to fraction form
839,808,110.80/1,259,712,166.20 = 809,197,109.20/x - Step 3: Cross multiply
839,808,110.80x = 1,259,712,166.20 × 809,197,109.20 - Step 4: Simplify right side
839,808,110.80x = 1,019,355,443,313,110,016 - Step 5: Solve for x
x = 1,019,355,443,313,110,016/839,808,110.80 - Step 6: Final answer
x = 1,213,795,663.80
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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.