Finding the Fourth Proportional to 22,502,554.08, 31,053,673.70 and 12,189,277.09
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Solution
The fourth proportional to 22,502,554.08, 31,053,673.70 and 12,189,277.09 is: 16,821,283.13
Step by Step Solution
- Step 1: Write the proportion equation
22,502,554.08 : 31,053,673.70 = 12,189,277.09 : x - Step 2: Convert to fraction form
22,502,554.08/31,053,673.70 = 12,189,277.09/x - Step 3: Cross multiply
22,502,554.08x = 31,053,673.70 × 12,189,277.09 - Step 4: Simplify right side
22,502,554.08x = 378,521,833,391,745.50 - Step 5: Solve for x
x = 378,521,833,391,745.50/22,502,554.08 - Step 6: Final answer
x = 16,821,283.13
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Double scale
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Similar ratio
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1.5x scale
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.