Finding the Fourth Proportional to 547,938,570.65, 821,824,810.97 and 149,128,216.08
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Solution
The fourth proportional to 547,938,570.65, 821,824,810.97 and 149,128,216.08 is: 223,669,722.40
Step by Step Solution
- Step 1: Write the proportion equation
547,938,570.65 : 821,824,810.97 = 149,128,216.08 : x - Step 2: Convert to fraction form
547,938,570.65/821,824,810.97 = 149,128,216.08/x - Step 3: Cross multiply
547,938,570.65x = 821,824,810.97 × 149,128,216.08 - Step 4: Simplify right side
547,938,570.65x = 122,557,267,990,612,144 - Step 5: Solve for x
x = 122,557,267,990,612,144/547,938,570.65 - Step 6: Final answer
x = 223,669,722.40
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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.