Finding the Fourth Proportional to 22,772,811.36, 31,426,442.88 and 12,459,576
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Solution
The fourth proportional to 22,772,811.36, 31,426,442.88 and 12,459,576 is: 17,194,194.75
Step by Step Solution
- Step 1: Write the proportion equation
22,772,811.36 : 31,426,442.88 = 12,459,576 : x - Step 2: Convert to fraction form
22,772,811.36/31,426,442.88 = 12,459,576/x - Step 3: Cross multiply
22,772,811.36x = 31,426,442.88 × 12,459,576 - Step 4: Simplify right side
22,772,811.36x = 391,560,153,473,018.88 - Step 5: Solve for x
x = 391,560,153,473,018.88/22,772,811.36 - Step 6: Final answer
x = 17,194,194.75
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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.