Finding the Fourth Proportional to 19,440,573.09, 26,828,805.38 and 11,180,640.98
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Solution
The fourth proportional to 19,440,573.09, 26,828,805.38 and 11,180,640.98 is: 15,429,752.99
Step by Step Solution
- Step 1: Write the proportion equation
19,440,573.09 : 26,828,805.38 = 11,180,640.98 : x - Step 2: Convert to fraction form
19,440,573.09/26,828,805.38 = 11,180,640.98/x - Step 3: Cross multiply
19,440,573.09x = 26,828,805.38 × 11,180,640.98 - Step 4: Simplify right side
19,440,573.09x = 299,963,240,686,025.25 - Step 5: Solve for x
x = 299,963,240,686,025.25/19,440,573.09 - Step 6: Final answer
x = 15,429,752.99
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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.