Finding the Fourth Proportional to 209,953,811.70, 314,930,717.55 and 88,785,263.70
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Solution
The fourth proportional to 209,953,811.70, 314,930,717.55 and 88,785,263.70 is: 133,177,895.55
Step by Step Solution
- Step 1: Write the proportion equation
209,953,811.70 : 314,930,717.55 = 88,785,263.70 : x - Step 2: Convert to fraction form
209,953,811.70/314,930,717.55 = 88,785,263.70/x - Step 3: Cross multiply
209,953,811.70x = 314,930,717.55 × 88,785,263.70 - Step 4: Simplify right side
209,953,811.70x = 27,961,206,804,906,968 - Step 5: Solve for x
x = 27,961,206,804,906,968/209,953,811.70 - Step 6: Final answer
x = 133,177,895.55
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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.