Finding the Fourth Proportional to 122,189,078.50, 168,626,693.08 and 69,266,811.87
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Solution
The fourth proportional to 122,189,078.50, 168,626,693.08 and 69,266,811.87 is: 95,591,468.31
Step by Step Solution
- Step 1: Write the proportion equation
122,189,078.50 : 168,626,693.08 = 69,266,811.87 : x - Step 2: Convert to fraction form
122,189,078.50/168,626,693.08 = 69,266,811.87/x - Step 3: Cross multiply
122,189,078.50x = 168,626,693.08 × 69,266,811.87 - Step 4: Simplify right side
122,189,078.50x = 11,680,233,425,832,592 - Step 5: Solve for x
x = 11,680,233,425,832,592/122,189,078.50 - Step 6: Final answer
x = 95,591,468.31
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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.