Finding the Fourth Proportional to 100,529,581.32, 138,742,055.76 and 60,858,969.99
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Solution
The fourth proportional to 100,529,581.32, 138,742,055.76 and 60,858,969.99 is: 83,992,179.19
Step by Step Solution
- Step 1: Write the proportion equation
100,529,581.32 : 138,742,055.76 = 60,858,969.99 : x - Step 2: Convert to fraction form
100,529,581.32/138,742,055.76 = 60,858,969.99/x - Step 3: Cross multiply
100,529,581.32x = 138,742,055.76 × 60,858,969.99 - Step 4: Simplify right side
100,529,581.32x = 8,443,698,607,848,746 - Step 5: Solve for x
x = 8,443,698,607,848,746/100,529,581.32 - Step 6: Final answer
x = 83,992,179.19
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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.