Finding the Fourth Proportional to 40,781,979.27, 56,283,923.66 and 22,903,137.95
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Solution
The fourth proportional to 40,781,979.27, 56,283,923.66 and 22,903,137.95 is: 31,609,021.70
Step by Step Solution
- Step 1: Write the proportion equation
40,781,979.27 : 56,283,923.66 = 22,903,137.95 : x - Step 2: Convert to fraction form
40,781,979.27/56,283,923.66 = 22,903,137.95/x - Step 3: Cross multiply
40,781,979.27x = 56,283,923.66 × 22,903,137.95 - Step 4: Simplify right side
40,781,979.27x = 1,289,078,467,556,313.75 - Step 5: Solve for x
x = 1,289,078,467,556,313.75/40,781,979.27 - Step 6: Final answer
x = 31,609,021.70
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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.