Finding the Fourth Proportional to 54,269,905.20, 81,381,238.20 and 17,864,228.40
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Solution
The fourth proportional to 54,269,905.20, 81,381,238.20 and 17,864,228.40 is: 26,788,567.65
Step by Step Solution
- Step 1: Write the proportion equation
54,269,905.20 : 81,381,238.20 = 17,864,228.40 : x - Step 2: Convert to fraction form
54,269,905.20/81,381,238.20 = 17,864,228.40/x - Step 3: Cross multiply
54,269,905.20x = 81,381,238.20 × 17,864,228.40 - Step 4: Simplify right side
54,269,905.20x = 1,453,813,026,679,604.75 - Step 5: Solve for x
x = 1,453,813,026,679,604.75/54,269,905.20 - Step 6: Final answer
x = 26,788,567.65
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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.