Finding the Fourth Proportional to 19,920,237.71, 27,489,983.97 and 11,549,234.24
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Solution
The fourth proportional to 19,920,237.71, 27,489,983.97 and 11,549,234.24 is: 15,937,975.67
Step by Step Solution
- Step 1: Write the proportion equation
19,920,237.71 : 27,489,983.97 = 11,549,234.24 : x - Step 2: Convert to fraction form
19,920,237.71/27,489,983.97 = 11,549,234.24/x - Step 3: Cross multiply
19,920,237.71x = 27,489,983.97 × 11,549,234.24 - Step 4: Simplify right side
19,920,237.71x = 317,488,264,067,357.81 - Step 5: Solve for x
x = 317,488,264,067,357.81/19,920,237.71 - Step 6: Final answer
x = 15,937,975.67
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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.