Finding the Fourth Proportional to 403,589,108.54, 556,952,966.50 and 217,950,107.82
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Solution
The fourth proportional to 403,589,108.54, 556,952,966.50 and 217,950,107.82 is: 300,771,147.02
Step by Step Solution
- Step 1: Write the proportion equation
403,589,108.54 : 556,952,966.50 = 217,950,107.82 : x - Step 2: Convert to fraction form
403,589,108.54/556,952,966.50 = 217,950,107.82/x - Step 3: Cross multiply
403,589,108.54x = 556,952,966.50 × 217,950,107.82 - Step 4: Simplify right side
403,589,108.54x = 121,387,959,101,281,120 - Step 5: Solve for x
x = 121,387,959,101,281,120/403,589,108.54 - Step 6: Final answer
x = 300,771,147.02
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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.