Finding the Fourth Proportional to 5,115,346.12, 7,058,675.24 and 2,823,359.19
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Solution
The fourth proportional to 5,115,346.12, 7,058,675.24 and 2,823,359.19 is: 3,895,958.38
Step by Step Solution
- Step 1: Write the proportion equation
5,115,346.12 : 7,058,675.24 = 2,823,359.19 : x - Step 2: Convert to fraction form
5,115,346.12/7,058,675.24 = 2,823,359.19/x - Step 3: Cross multiply
5,115,346.12x = 7,058,675.24 × 2,823,359.19 - Step 4: Simplify right side
5,115,346.12x = 19,929,175,578,080.22 - Step 5: Solve for x
x = 19,929,175,578,080.22/5,115,346.12 - Step 6: Final answer
x = 3,895,958.38
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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.