Finding the Fourth Proportional to 22,486,644.48, 31,031,427.36 and 12,173,292.48
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Solution
The fourth proportional to 22,486,644.48, 31,031,427.36 and 12,173,292.48 is: 16,799,066.74
Step by Step Solution
- Step 1: Write the proportion equation
22,486,644.48 : 31,031,427.36 = 12,173,292.48 : x - Step 2: Convert to fraction form
22,486,644.48/31,031,427.36 = 12,173,292.48/x - Step 3: Cross multiply
22,486,644.48x = 31,031,427.36 × 12,173,292.48 - Step 4: Simplify right side
22,486,644.48x = 377,754,641,325,154.25 - Step 5: Solve for x
x = 377,754,641,325,154.25/22,486,644.48 - Step 6: Final answer
x = 16,799,066.74
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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.