Finding the Fourth Proportional to 19,624,206.78, 29,433,991.86 and 5,248,388.70
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Solution
The fourth proportional to 19,624,206.78, 29,433,991.86 and 5,248,388.70 is: 7,871,963.03
Step by Step Solution
- Step 1: Write the proportion equation
19,624,206.78 : 29,433,991.86 = 5,248,388.70 : x - Step 2: Convert to fraction form
19,624,206.78/29,433,991.86 = 5,248,388.70/x - Step 3: Cross multiply
19,624,206.78x = 29,433,991.86 × 5,248,388.70 - Step 4: Simplify right side
19,624,206.78x = 154,481,030,273,915.97 - Step 5: Solve for x
x = 154,481,030,273,915.97/19,624,206.78 - Step 6: Final answer
x = 7,871,963.03
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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.