Finding the Fourth Proportional to 19,722,407.01, 27,216,399.53 and 11,020,651.12
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Solution
The fourth proportional to 19,722,407.01, 27,216,399.53 and 11,020,651.12 is: 15,208,206.78
Step by Step Solution
- Step 1: Write the proportion equation
19,722,407.01 : 27,216,399.53 = 11,020,651.12 : x - Step 2: Convert to fraction form
19,722,407.01/27,216,399.53 = 11,020,651.12/x - Step 3: Cross multiply
19,722,407.01x = 27,216,399.53 × 11,020,651.12 - Step 4: Simplify right side
19,722,407.01x = 299,942,444,024,234.06 - Step 5: Solve for x
x = 299,942,444,024,234.06/19,722,407.01 - Step 6: Final answer
x = 15,208,206.78
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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.