Finding the Fourth Proportional to 22,486,439.19, 31,031,296.53 and 12,173,162.28
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Solution
The fourth proportional to 22,486,439.19, 31,031,296.53 and 12,173,162.28 is: 16,798,969.60
Step by Step Solution
- Step 1: Write the proportion equation
22,486,439.19 : 31,031,296.53 = 12,173,162.28 : x - Step 2: Convert to fraction form
22,486,439.19/31,031,296.53 = 12,173,162.28/x - Step 3: Cross multiply
22,486,439.19x = 31,031,296.53 × 12,173,162.28 - Step 4: Simplify right side
22,486,439.19x = 377,749,008,357,625.06 - Step 5: Solve for x
x = 377,749,008,357,625.06/22,486,439.19 - Step 6: Final answer
x = 16,798,969.60
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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.