Finding the Fourth Proportional to 562,815,232.81, 776,685,094.98 and 311,935,821.63
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Solution
The fourth proportional to 562,815,232.81, 776,685,094.98 and 311,935,821.63 is: 430,471,474.69
Step by Step Solution
- Step 1: Write the proportion equation
562,815,232.81 : 776,685,094.98 = 311,935,821.63 : x - Step 2: Convert to fraction form
562,815,232.81/776,685,094.98 = 311,935,821.63/x - Step 3: Cross multiply
562,815,232.81x = 776,685,094.98 × 311,935,821.63 - Step 4: Simplify right side
562,815,232.81x = 242,275,903,246,270,816 - Step 5: Solve for x
x = 242,275,903,246,270,816/562,815,232.81 - Step 6: Final answer
x = 430,471,474.69
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1.5x scale
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.