Finding the Fourth Proportional to 72,833,666.74, 100,509,287.12 and 39,793,206.42
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Solution
The fourth proportional to 72,833,666.74, 100,509,287.12 and 39,793,206.42 is: 54,913,983.99
Step by Step Solution
- Step 1: Write the proportion equation
72,833,666.74 : 100,509,287.12 = 39,793,206.42 : x - Step 2: Convert to fraction form
72,833,666.74/100,509,287.12 = 39,793,206.42/x - Step 3: Cross multiply
72,833,666.74x = 100,509,287.12 × 39,793,206.42 - Step 4: Simplify right side
72,833,666.74x = 3,999,586,809,545,514 - Step 5: Solve for x
x = 3,999,586,809,545,514/72,833,666.74 - Step 6: Final answer
x = 54,913,983.99
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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.