Finding the Fourth Proportional to 153,776,621.93, 212,212,300.74 and 83,212,232.75
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Solution
The fourth proportional to 153,776,621.93, 212,212,300.74 and 83,212,232.75 is: 114,833,185.56
Step by Step Solution
- Step 1: Write the proportion equation
153,776,621.93 : 212,212,300.74 = 83,212,232.75 : x - Step 2: Convert to fraction form
153,776,621.93/212,212,300.74 = 83,212,232.75/x - Step 3: Cross multiply
153,776,621.93x = 212,212,300.74 × 83,212,232.75 - Step 4: Simplify right side
153,776,621.93x = 17,658,659,360,528,818 - Step 5: Solve for x
x = 17,658,659,360,528,818/153,776,621.93 - Step 6: Final answer
x = 114,833,185.56
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.