Finding the Fourth Proportional to 1,771,471,238.40, 2,657,206,857.60 and 1,190,995,948.80
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Solution
The fourth proportional to 1,771,471,238.40, 2,657,206,857.60 and 1,190,995,948.80 is: 1,786,493,923.20
Step by Step Solution
- Step 1: Write the proportion equation
1,771,471,238.40 : 2,657,206,857.60 = 1,190,995,948.80 : x - Step 2: Convert to fraction form
1,771,471,238.40/2,657,206,857.60 = 1,190,995,948.80/x - Step 3: Cross multiply
1,771,471,238.40x = 2,657,206,857.60 × 1,190,995,948.80 - Step 4: Simplify right side
1,771,471,238.40x = 3,164,722,602,525,178,368 - Step 5: Solve for x
x = 3,164,722,602,525,178,368/1,771,471,238.40 - Step 6: Final answer
x = 1,786,493,923.20
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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.