Finding the Fourth Proportional to 122,102,454.40, 168,464,642.88 and 73,192,036.48
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Solution
The fourth proportional to 122,102,454.40, 168,464,642.88 and 73,192,036.48 is: 100,982,984.72
Step by Step Solution
- Step 1: Write the proportion equation
122,102,454.40 : 168,464,642.88 = 73,192,036.48 : x - Step 2: Convert to fraction form
122,102,454.40/168,464,642.88 = 73,192,036.48/x - Step 3: Cross multiply
122,102,454.40x = 168,464,642.88 × 73,192,036.48 - Step 4: Simplify right side
122,102,454.40x = 12,330,270,287,263,132 - Step 5: Solve for x
x = 12,330,270,287,263,132/122,102,454.40 - Step 6: Final answer
x = 100,982,984.72
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.