Finding the Fourth Proportional to 1,173,471,206.40, 1,760,206,809.60 and 355,477,219.20
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Solution
The fourth proportional to 1,173,471,206.40, 1,760,206,809.60 and 355,477,219.20 is: 533,215,828.80
Step by Step Solution
- Step 1: Write the proportion equation
1,173,471,206.40 : 1,760,206,809.60 = 355,477,219.20 : x - Step 2: Convert to fraction form
1,173,471,206.40/1,760,206,809.60 = 355,477,219.20/x - Step 3: Cross multiply
1,173,471,206.40x = 1,760,206,809.60 × 355,477,219.20 - Step 4: Simplify right side
1,173,471,206.40x = 625,713,421,893,511,808 - Step 5: Solve for x
x = 625,713,421,893,511,808/1,173,471,206.40 - Step 6: Final answer
x = 533,215,828.80
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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.