Finding the Fourth Proportional to 219,177,187.74, 302,460,812.07 and 121,389,944.22
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Solution
The fourth proportional to 219,177,187.74, 302,460,812.07 and 121,389,944.22 is: 167,516,069.92
Step by Step Solution
- Step 1: Write the proportion equation
219,177,187.74 : 302,460,812.07 = 121,389,944.22 : x - Step 2: Convert to fraction form
219,177,187.74/302,460,812.07 = 121,389,944.22/x - Step 3: Cross multiply
219,177,187.74x = 302,460,812.07 × 121,389,944.22 - Step 4: Simplify right side
219,177,187.74x = 36,715,701,105,913,200 - Step 5: Solve for x
x = 36,715,701,105,913,200/219,177,187.74 - Step 6: Final answer
x = 167,516,069.92
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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.