Finding the Fourth Proportional to 126,028,923.40, 189,185,102.70 and 97,401,968.20
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Solution
The fourth proportional to 126,028,923.40, 189,185,102.70 and 97,401,968.20 is: 146,212,479.33
Step by Step Solution
- Step 1: Write the proportion equation
126,028,923.40 : 189,185,102.70 = 97,401,968.20 : x - Step 2: Convert to fraction form
126,028,923.40/189,185,102.70 = 97,401,968.20/x - Step 3: Cross multiply
126,028,923.40x = 189,185,102.70 × 97,401,968.20 - Step 4: Simplify right side
126,028,923.40x = 18,427,001,357,099,132 - Step 5: Solve for x
x = 18,427,001,357,099,132/126,028,923.40 - Step 6: Final answer
x = 146,212,479.33
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.