Finding the Fourth Proportional to 14,688,390.29, 20,271,842.59 and 8,887,219.70
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Solution
The fourth proportional to 14,688,390.29, 20,271,842.59 and 8,887,219.70 is: 12,265,490.99
Step by Step Solution
- Step 1: Write the proportion equation
14,688,390.29 : 20,271,842.59 = 8,887,219.70 : x - Step 2: Convert to fraction form
14,688,390.29/20,271,842.59 = 8,887,219.70/x - Step 3: Cross multiply
14,688,390.29x = 20,271,842.59 × 8,887,219.70 - Step 4: Simplify right side
14,688,390.29x = 180,160,318,849,608.59 - Step 5: Solve for x
x = 180,160,318,849,608.59/14,688,390.29 - Step 6: Final answer
x = 12,265,490.99
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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.