Finding the Fourth Proportional to 19,722,407.76, 27,216,400.57 and 11,020,651.88
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Solution
The fourth proportional to 19,722,407.76, 27,216,400.57 and 11,020,651.88 is: 15,208,207.82
Step by Step Solution
- Step 1: Write the proportion equation
19,722,407.76 : 27,216,400.57 = 11,020,651.88 : x - Step 2: Convert to fraction form
19,722,407.76/27,216,400.57 = 11,020,651.88/x - Step 3: Cross multiply
19,722,407.76x = 27,216,400.57 × 11,020,651.88 - Step 4: Simplify right side
19,722,407.76x = 299,942,475,944,969.94 - Step 5: Solve for x
x = 299,942,475,944,969.94/19,722,407.76 - Step 6: Final answer
x = 15,208,207.82
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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.