Finding the Fourth Proportional to 26,279,434.70, 39,397,811.20 and 10,938,207.63
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Solution
The fourth proportional to 26,279,434.70, 39,397,811.20 and 10,938,207.63 is: 16,398,428.81
Step by Step Solution
- Step 1: Write the proportion equation
26,279,434.70 : 39,397,811.20 = 10,938,207.63 : x - Step 2: Convert to fraction form
26,279,434.70/39,397,811.20 = 10,938,207.63/x - Step 3: Cross multiply
26,279,434.70x = 39,397,811.20 × 10,938,207.63 - Step 4: Simplify right side
26,279,434.70x = 430,941,438,974,200.88 - Step 5: Solve for x
x = 430,941,438,974,200.88/26,279,434.70 - Step 6: Final answer
x = 16,398,428.81
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.