Finding the Fourth Proportional to 318,644,355.96, 439,612,567.26 and 193,105,987.80
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Solution
The fourth proportional to 318,644,355.96, 439,612,567.26 and 193,105,987.80 is: 266,415,574.17
Step by Step Solution
- Step 1: Write the proportion equation
318,644,355.96 : 439,612,567.26 = 193,105,987.80 : x - Step 2: Convert to fraction form
318,644,355.96/439,612,567.26 = 193,105,987.80/x - Step 3: Cross multiply
318,644,355.96x = 439,612,567.26 × 193,105,987.80 - Step 4: Simplify right side
318,644,355.96x = 84,891,819,050,036,240 - Step 5: Solve for x
x = 84,891,819,050,036,240/318,644,355.96 - Step 6: Final answer
x = 266,415,574.17
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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.