Finding the Fourth Proportional to 100,529,572.96, 138,742,044.18 and 60,858,961.62
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Solution
The fourth proportional to 100,529,572.96, 138,742,044.18 and 60,858,961.62 is: 83,992,167.61
Step by Step Solution
- Step 1: Write the proportion equation
100,529,572.96 : 138,742,044.18 = 60,858,961.62 : x - Step 2: Convert to fraction form
100,529,572.96/138,742,044.18 = 60,858,961.62/x - Step 3: Cross multiply
100,529,572.96x = 138,742,044.18 × 60,858,961.62 - Step 4: Simplify right side
100,529,572.96x = 8,443,696,741,830,964 - Step 5: Solve for x
x = 8,443,696,741,830,964/100,529,572.96 - Step 6: Final answer
x = 83,992,167.61
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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.