Finding the Fourth Proportional to 22,472,508.26, 31,012,206.36 and 13,178,187.02
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Solution
The fourth proportional to 22,472,508.26, 31,012,206.36 and 13,178,187.02 is: 18,185,983.09
Step by Step Solution
- Step 1: Write the proportion equation
22,472,508.26 : 31,012,206.36 = 13,178,187.02 : x - Step 2: Convert to fraction form
22,472,508.26/31,012,206.36 = 13,178,187.02/x - Step 3: Cross multiply
22,472,508.26x = 31,012,206.36 × 13,178,187.02 - Step 4: Simplify right side
22,472,508.26x = 408,684,655,314,913.44 - Step 5: Solve for x
x = 408,684,655,314,913.44/22,472,508.26 - Step 6: Final answer
x = 18,185,983.09
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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.