Finding the Fourth Proportional to 12,697,378.97, 17,527,733.47 and 8,572,990.79
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Solution
The fourth proportional to 12,697,378.97, 17,527,733.47 and 8,572,990.79 is: 11,834,339.83
Step by Step Solution
- Step 1: Write the proportion equation
12,697,378.97 : 17,527,733.47 = 8,572,990.79 : x - Step 2: Convert to fraction form
12,697,378.97/17,527,733.47 = 8,572,990.79/x - Step 3: Cross multiply
12,697,378.97x = 17,527,733.47 × 8,572,990.79 - Step 4: Simplify right side
12,697,378.97x = 150,265,097,662,420.34 - Step 5: Solve for x
x = 150,265,097,662,420.34/12,697,378.97 - Step 6: Final answer
x = 11,834,339.83
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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.