Finding the Fourth Proportional to 115,989,003.12, 160,070,570.16 and 71,950,191.12
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Solution
The fourth proportional to 115,989,003.12, 160,070,570.16 and 71,950,191.12 is: 99,294,828.01
Step by Step Solution
- Step 1: Write the proportion equation
115,989,003.12 : 160,070,570.16 = 71,950,191.12 : x - Step 2: Convert to fraction form
115,989,003.12/160,070,570.16 = 71,950,191.12/x - Step 3: Cross multiply
115,989,003.12x = 160,070,570.16 × 71,950,191.12 - Step 4: Simplify right side
115,989,003.12x = 11,517,108,115,699,370 - Step 5: Solve for x
x = 11,517,108,115,699,370/115,989,003.12 - Step 6: Final answer
x = 99,294,828.01
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1.5x scale
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.