Finding the Fourth Proportional to 22,555,866.92, 31,126,705.78 and 12,242,368.68
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Solution
The fourth proportional to 22,555,866.92, 31,126,705.78 and 12,242,368.68 is: 16,894,256.79
Step by Step Solution
- Step 1: Write the proportion equation
22,555,866.92 : 31,126,705.78 = 12,242,368.68 : x - Step 2: Convert to fraction form
22,555,866.92/31,126,705.78 = 12,242,368.68/x - Step 3: Cross multiply
22,555,866.92x = 31,126,705.78 × 12,242,368.68 - Step 4: Simplify right side
22,555,866.92x = 381,064,607,952,647 - Step 5: Solve for x
x = 381,064,607,952,647/22,555,866.92 - Step 6: Final answer
x = 16,894,256.79
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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.