Finding the Fourth Proportional to 126,229,654.80, 174,167,340.08 and 76,668,648.12
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Solution
The fourth proportional to 126,229,654.80, 174,167,340.08 and 76,668,648.12 is: 105,784,766.12
Step by Step Solution
- Step 1: Write the proportion equation
126,229,654.80 : 174,167,340.08 = 76,668,648.12 : x - Step 2: Convert to fraction form
126,229,654.80/174,167,340.08 = 76,668,648.12/x - Step 3: Cross multiply
126,229,654.80x = 174,167,340.08 × 76,668,648.12 - Step 4: Simplify right side
126,229,654.80x = 13,353,174,510,206,550 - Step 5: Solve for x
x = 13,353,174,510,206,550/126,229,654.80 - Step 6: Final answer
x = 105,784,766.12
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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.