Finding the Fourth Proportional to 100,529,572.13, 138,742,043.06 and 60,858,960.80
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Solution
The fourth proportional to 100,529,572.13, 138,742,043.06 and 60,858,960.80 is: 83,992,166.49
Step by Step Solution
- Step 1: Write the proportion equation
100,529,572.13 : 138,742,043.06 = 60,858,960.80 : x - Step 2: Convert to fraction form
100,529,572.13/138,742,043.06 = 60,858,960.80/x - Step 3: Cross multiply
100,529,572.13x = 138,742,043.06 × 60,858,960.80 - Step 4: Simplify right side
100,529,572.13x = 8,443,696,559,358,889 - Step 5: Solve for x
x = 8,443,696,559,358,889/100,529,572.13 - Step 6: Final answer
x = 83,992,166.49
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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.