Finding the Fourth Proportional to 424,632,950.88, 636,986,208.96 and 129,594,447.09
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Solution
The fourth proportional to 424,632,950.88, 636,986,208.96 and 129,594,447.09 is: 194,402,896.39
Step by Step Solution
- Step 1: Write the proportion equation
424,632,950.88 : 636,986,208.96 = 129,594,447.09 : x - Step 2: Convert to fraction form
424,632,950.88/636,986,208.96 = 129,594,447.09/x - Step 3: Cross multiply
424,632,950.88x = 636,986,208.96 × 129,594,447.09 - Step 4: Simplify right side
424,632,950.88x = 82,549,875,554,126,416 - Step 5: Solve for x
x = 82,549,875,554,126,416/424,632,950.88 - Step 6: Final answer
x = 194,402,896.39
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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.