Finding the Fourth Proportional to 403,589,109.74, 556,952,968.17 and 217,950,109.02
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Solution
The fourth proportional to 403,589,109.74, 556,952,968.17 and 217,950,109.02 is: 300,771,148.68
Step by Step Solution
- Step 1: Write the proportion equation
403,589,109.74 : 556,952,968.17 = 217,950,109.02 : x - Step 2: Convert to fraction form
403,589,109.74/556,952,968.17 = 217,950,109.02/x - Step 3: Cross multiply
403,589,109.74x = 556,952,968.17 × 217,950,109.02 - Step 4: Simplify right side
403,589,109.74x = 121,387,960,131,664,080 - Step 5: Solve for x
x = 121,387,960,131,664,080/403,589,109.74 - Step 6: Final answer
x = 300,771,148.68
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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.