Finding the Fourth Proportional to 13,118,210.31, 18,108,935.88 and 8,474,260.18
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Solution
The fourth proportional to 13,118,210.31, 18,108,935.88 and 8,474,260.18 is: 11,698,229.45
Step by Step Solution
- Step 1: Write the proportion equation
13,118,210.31 : 18,108,935.88 = 8,474,260.18 : x - Step 2: Convert to fraction form
13,118,210.31/18,108,935.88 = 8,474,260.18/x - Step 3: Cross multiply
13,118,210.31x = 18,108,935.88 × 8,474,260.18 - Step 4: Simplify right side
13,118,210.31x = 153,459,834,153,006.44 - Step 5: Solve for x
x = 153,459,834,153,006.44/13,118,210.31 - Step 6: Final answer
x = 11,698,229.45
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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.