Finding the Fourth Proportional to 12,403,246.30, 18,569,440.05 and 11,127,787.90
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Solution
The fourth proportional to 12,403,246.30, 18,569,440.05 and 11,127,787.90 is: 16,659,895.75
Step by Step Solution
- Step 1: Write the proportion equation
12,403,246.30 : 18,569,440.05 = 11,127,787.90 : x - Step 2: Convert to fraction form
12,403,246.30/18,569,440.05 = 11,127,787.90/x - Step 3: Cross multiply
12,403,246.30x = 18,569,440.05 × 11,127,787.90 - Step 4: Simplify right side
12,403,246.30x = 206,636,790,298,165.41 - Step 5: Solve for x
x = 206,636,790,298,165.41/12,403,246.30 - Step 6: Final answer
x = 16,659,895.75
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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.