Finding the Fourth Proportional to 8,831,351.98, 12,185,479.30 and 5,159,559.09
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Solution
The fourth proportional to 8,831,351.98, 12,185,479.30 and 5,159,559.09 is: 7,119,147.85
Step by Step Solution
- Step 1: Write the proportion equation
8,831,351.98 : 12,185,479.30 = 5,159,559.09 : x - Step 2: Convert to fraction form
8,831,351.98/12,185,479.30 = 5,159,559.09/x - Step 3: Cross multiply
8,831,351.98x = 12,185,479.30 × 5,159,559.09 - Step 4: Simplify right side
8,831,351.98x = 62,871,700,488,321.84 - Step 5: Solve for x
x = 62,871,700,488,321.84/8,831,351.98 - Step 6: Final answer
x = 7,119,147.85
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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.