Finding the Fourth Proportional to 65,203,888.40, 97,805,832.60 and 42,245,637.20
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Solution
The fourth proportional to 65,203,888.40, 97,805,832.60 and 42,245,637.20 is: 63,368,455.80
Step by Step Solution
- Step 1: Write the proportion equation
65,203,888.40 : 97,805,832.60 = 42,245,637.20 : x - Step 2: Convert to fraction form
65,203,888.40/97,805,832.60 = 42,245,637.20/x - Step 3: Cross multiply
65,203,888.40x = 97,805,832.60 × 42,245,637.20 - Step 4: Simplify right side
65,203,888.40x = 4,131,869,720,063,533 - Step 5: Solve for x
x = 4,131,869,720,063,533/65,203,888.40 - Step 6: Final answer
x = 63,368,455.80
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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.