Finding the Fourth Proportional to 72,001,446.96, 99,362,260.14 and 38,961,696.42
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Solution
The fourth proportional to 72,001,446.96, 99,362,260.14 and 38,961,696.42 is: 53,767,283.56
Step by Step Solution
- Step 1: Write the proportion equation
72,001,446.96 : 99,362,260.14 = 38,961,696.42 : x - Step 2: Convert to fraction form
72,001,446.96/99,362,260.14 = 38,961,696.42/x - Step 3: Cross multiply
72,001,446.96x = 99,362,260.14 × 38,961,696.42 - Step 4: Simplify right side
72,001,446.96x = 3,871,322,215,179,747 - Step 5: Solve for x
x = 3,871,322,215,179,747/72,001,446.96 - Step 6: Final answer
x = 53,767,283.56
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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.