Finding the Fourth Proportional to 1,778,289,803.76, 2,667,192,558.54 and 468,082,138.08
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Solution
The fourth proportional to 1,778,289,803.76, 2,667,192,558.54 and 468,082,138.08 is: 702,059,469.07
Step by Step Solution
- Step 1: Write the proportion equation
1,778,289,803.76 : 2,667,192,558.54 = 468,082,138.08 : x - Step 2: Convert to fraction form
1,778,289,803.76/2,667,192,558.54 = 468,082,138.08/x - Step 3: Cross multiply
1,778,289,803.76x = 2,667,192,558.54 × 468,082,138.08 - Step 4: Simplify right side
1,778,289,803.76x = 1,248,465,195,472,468,736 - Step 5: Solve for x
x = 1,248,465,195,472,468,736/1,778,289,803.76 - Step 6: Final answer
x = 702,059,469.07
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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.