Finding the Fourth Proportional to 18,903,936.84, 26,083,991.70 and 10,642,714.44
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Solution
The fourth proportional to 18,903,936.84, 26,083,991.70 and 10,642,714.44 is: 14,685,008.60
Step by Step Solution
- Step 1: Write the proportion equation
18,903,936.84 : 26,083,991.70 = 10,642,714.44 : x - Step 2: Convert to fraction form
18,903,936.84/26,083,991.70 = 10,642,714.44/x - Step 3: Cross multiply
18,903,936.84x = 26,083,991.70 × 10,642,714.44 - Step 4: Simplify right side
18,903,936.84x = 277,604,475,118,430.12 - Step 5: Solve for x
x = 277,604,475,118,430.12/18,903,936.84 - Step 6: Final answer
x = 14,685,008.60
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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.