Finding the Fourth Proportional to 11,447,115.60, 15,793,574.76 and 6,861,763.92
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Solution
The fourth proportional to 11,447,115.60, 15,793,574.76 and 6,861,763.92 is: 9,467,169.31
Step by Step Solution
- Step 1: Write the proportion equation
11,447,115.60 : 15,793,574.76 = 6,861,763.92 : x - Step 2: Convert to fraction form
11,447,115.60/15,793,574.76 = 6,861,763.92/x - Step 3: Cross multiply
11,447,115.60x = 15,793,574.76 × 6,861,763.92 - Step 4: Simplify right side
11,447,115.60x = 108,371,781,455,990.66 - Step 5: Solve for x
x = 108,371,781,455,990.66/11,447,115.60 - Step 6: Final answer
x = 9,467,169.31
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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.