Finding the Fourth Proportional to 18,403,215.80, 27,604,823.70 and 8,325,519.80
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Solution
The fourth proportional to 18,403,215.80, 27,604,823.70 and 8,325,519.80 is: 12,488,279.70
Step by Step Solution
- Step 1: Write the proportion equation
18,403,215.80 : 27,604,823.70 = 8,325,519.80 : x - Step 2: Convert to fraction form
18,403,215.80/27,604,823.70 = 8,325,519.80/x - Step 3: Cross multiply
18,403,215.80x = 27,604,823.70 × 8,325,519.80 - Step 4: Simplify right side
18,403,215.80x = 229,824,506,289,859.25 - Step 5: Solve for x
x = 229,824,506,289,859.25/18,403,215.80 - Step 6: Final answer
x = 12,488,279.70
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.