Finding the Fourth Proportional to 20,736,041.80, 31,104,062.70 and 15,697,193.80
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Solution
The fourth proportional to 20,736,041.80, 31,104,062.70 and 15,697,193.80 is: 23,545,790.70
Step by Step Solution
- Step 1: Write the proportion equation
20,736,041.80 : 31,104,062.70 = 15,697,193.80 : x - Step 2: Convert to fraction form
20,736,041.80/31,104,062.70 = 15,697,193.80/x - Step 3: Cross multiply
20,736,041.80x = 31,104,062.70 × 15,697,193.80 - Step 4: Simplify right side
20,736,041.80x = 488,246,500,169,251.25 - Step 5: Solve for x
x = 488,246,500,169,251.25/20,736,041.80 - Step 6: Final answer
x = 23,545,790.70
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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.