Finding the Fourth Proportional to 20,553,923.47, 28,363,330.02 and 11,733,024.26
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Solution
The fourth proportional to 20,553,923.47, 28,363,330.02 and 11,733,024.26 is: 16,190,954.48
Step by Step Solution
- Step 1: Write the proportion equation
20,553,923.47 : 28,363,330.02 = 11,733,024.26 : x - Step 2: Convert to fraction form
20,553,923.47/28,363,330.02 = 11,733,024.26/x - Step 3: Cross multiply
20,553,923.47x = 28,363,330.02 × 11,733,024.26 - Step 4: Simplify right side
20,553,923.47x = 332,787,639,219,046.25 - Step 5: Solve for x
x = 332,787,639,219,046.25/20,553,923.47 - Step 6: Final answer
x = 16,190,954.48
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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.