Finding the Fourth Proportional to 36,700,419.70, 55,048,879.95 and 12,436,966.90
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Solution
The fourth proportional to 36,700,419.70, 55,048,879.95 and 12,436,966.90 is: 18,654,857.45
Step by Step Solution
- Step 1: Write the proportion equation
36,700,419.70 : 55,048,879.95 = 12,436,966.90 : x - Step 2: Convert to fraction form
36,700,419.70/55,048,879.95 = 12,436,966.90/x - Step 3: Cross multiply
36,700,419.70x = 55,048,879.95 × 12,436,966.90 - Step 4: Simplify right side
36,700,419.70x = 684,641,097,820,223.75 - Step 5: Solve for x
x = 684,641,097,820,223.75/36,700,419.70 - Step 6: Final answer
x = 18,654,857.45
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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.