Finding the Fourth Proportional to 2,621,072,362.90, 3,931,623,242.21 and 874,270,304.08
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Solution
The fourth proportional to 2,621,072,362.90, 3,931,623,242.21 and 874,270,304.08 is: 1,311,410,358.66
Step by Step Solution
- Step 1: Write the proportion equation
2,621,072,362.90 : 3,931,623,242.21 = 874,270,304.08 : x - Step 2: Convert to fraction form
2,621,072,362.90/3,931,623,242.21 = 874,270,304.08/x - Step 3: Cross multiply
2,621,072,362.90x = 3,931,623,242.21 × 874,270,304.08 - Step 4: Simplify right side
2,621,072,362.90x = 3,437,301,447,494,932,480 - Step 5: Solve for x
x = 3,437,301,447,494,932,480/2,621,072,362.90 - Step 6: Final answer
x = 1,311,410,358.66
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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.