Finding the Fourth Proportional to 87,916,355.73, 121,346,618.40 and 59,706,460.42
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Solution
The fourth proportional to 87,916,355.73, 121,346,618.40 and 59,706,460.42 is: 82,409,888.45
Step by Step Solution
- Step 1: Write the proportion equation
87,916,355.73 : 121,346,618.40 = 59,706,460.42 : x - Step 2: Convert to fraction form
87,916,355.73/121,346,618.40 = 59,706,460.42/x - Step 3: Cross multiply
87,916,355.73x = 121,346,618.40 × 59,706,460.42 - Step 4: Simplify right side
87,916,355.73x = 7,245,177,068,638,305 - Step 5: Solve for x
x = 7,245,177,068,638,305/87,916,355.73 - Step 6: Final answer
x = 82,409,888.45
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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.