Finding the Fourth Proportional to 38,566,206.38, 53,221,218.80 and 21,162,842.84
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Solution
The fourth proportional to 38,566,206.38, 53,221,218.80 and 21,162,842.84 is: 29,204,643.00
Step by Step Solution
- Step 1: Write the proportion equation
38,566,206.38 : 53,221,218.80 = 21,162,842.84 : x - Step 2: Convert to fraction form
38,566,206.38/53,221,218.80 = 21,162,842.84/x - Step 3: Cross multiply
38,566,206.38x = 53,221,218.80 × 21,162,842.84 - Step 4: Simplify right side
38,566,206.38x = 1,126,312,289,217,653.25 - Step 5: Solve for x
x = 1,126,312,289,217,653.25/38,566,206.38 - Step 6: Final answer
x = 29,204,643.00
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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.