Finding the Fourth Proportional to 108,089,643.44, 149,174,356.92 and 61,686,881.84
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Solution
The fourth proportional to 108,089,643.44, 149,174,356.92 and 61,686,881.84 is: 85,133,974.32
Step by Step Solution
- Step 1: Write the proportion equation
108,089,643.44 : 149,174,356.92 = 61,686,881.84 : x - Step 2: Convert to fraction form
108,089,643.44/149,174,356.92 = 61,686,881.84/x - Step 3: Cross multiply
108,089,643.44x = 149,174,356.92 × 61,686,881.84 - Step 4: Simplify right side
108,089,643.44x = 9,202,100,928,882,026 - Step 5: Solve for x
x = 9,202,100,928,882,026/108,089,643.44 - Step 6: Final answer
x = 85,133,974.32
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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.