Finding the Fourth Proportional to 561,445,082.05, 774,742,217.85 and 310,544,073.79
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Solution
The fourth proportional to 561,445,082.05, 774,742,217.85 and 310,544,073.79 is: 428,522,062.37
Step by Step Solution
- Step 1: Write the proportion equation
561,445,082.05 : 774,742,217.85 = 310,544,073.79 : x - Step 2: Convert to fraction form
561,445,082.05/774,742,217.85 = 310,544,073.79/x - Step 3: Cross multiply
561,445,082.05x = 774,742,217.85 × 310,544,073.79 - Step 4: Simplify right side
561,445,082.05x = 240,591,604,468,238,688 - Step 5: Solve for x
x = 240,591,604,468,238,688/561,445,082.05 - Step 6: Final answer
x = 428,522,062.37
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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.