Finding the Fourth Proportional to 122,532,749.70, 183,799,124.55 and 77,183,117.70
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Solution
The fourth proportional to 122,532,749.70, 183,799,124.55 and 77,183,117.70 is: 115,774,676.55
Step by Step Solution
- Step 1: Write the proportion equation
122,532,749.70 : 183,799,124.55 = 77,183,117.70 : x - Step 2: Convert to fraction form
122,532,749.70/183,799,124.55 = 77,183,117.70/x - Step 3: Cross multiply
122,532,749.70x = 183,799,124.55 × 77,183,117.70 - Step 4: Simplify right side
122,532,749.70x = 14,186,189,463,299,612 - Step 5: Solve for x
x = 14,186,189,463,299,612/122,532,749.70 - Step 6: Final answer
x = 115,774,676.55
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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.