Finding the Fourth Proportional to 19,478,361.51, 26,877,776.00 and 11,221,096.98
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Solution
The fourth proportional to 19,478,361.51, 26,877,776.00 and 11,221,096.98 is: 15,483,752.61
Step by Step Solution
- Step 1: Write the proportion equation
19,478,361.51 : 26,877,776.00 = 11,221,096.98 : x - Step 2: Convert to fraction form
19,478,361.51/26,877,776.00 = 11,221,096.98/x - Step 3: Cross multiply
19,478,361.51x = 26,877,776.00 × 11,221,096.98 - Step 4: Simplify right side
19,478,361.51x = 301,598,130,940,274.81 - Step 5: Solve for x
x = 301,598,130,940,274.81/19,478,361.51 - Step 6: Final answer
x = 15,483,752.61
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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.