Finding the Fourth Proportional to 11,831,138.28, 16,326,970.80 and 6,398,630.28
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Solution
The fourth proportional to 11,831,138.28, 16,326,970.80 and 6,398,630.28 is: 8,830,109.77
Step by Step Solution
- Step 1: Write the proportion equation
11,831,138.28 : 16,326,970.80 = 6,398,630.28 : x - Step 2: Convert to fraction form
11,831,138.28/16,326,970.80 = 6,398,630.28/x - Step 3: Cross multiply
11,831,138.28x = 16,326,970.80 × 6,398,630.28 - Step 4: Simplify right side
11,831,138.28x = 104,470,249,741,555.83 - Step 5: Solve for x
x = 104,470,249,741,555.83/11,831,138.28 - Step 6: Final answer
x = 8,830,109.77
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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.