Finding the Fourth Proportional to 19,988,084.48, 29,982,126.51 and 7,208,588.99
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Solution
The fourth proportional to 19,988,084.48, 29,982,126.51 and 7,208,588.99 is: 10,812,883.42
Step by Step Solution
- Step 1: Write the proportion equation
19,988,084.48 : 29,982,126.51 = 7,208,588.99 : x - Step 2: Convert to fraction form
19,988,084.48/29,982,126.51 = 7,208,588.99/x - Step 3: Cross multiply
19,988,084.48x = 29,982,126.51 × 7,208,588.99 - Step 4: Simplify right side
19,988,084.48x = 216,128,827,131,728.44 - Step 5: Solve for x
x = 216,128,827,131,728.44/19,988,084.48 - Step 6: Final answer
x = 10,812,883.42
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.