Finding the Fourth Proportional to 65,415,062.80, 98,122,594.20 and 39,842,909.20
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Solution
The fourth proportional to 65,415,062.80, 98,122,594.20 and 39,842,909.20 is: 59,764,363.80
Step by Step Solution
- Step 1: Write the proportion equation
65,415,062.80 : 98,122,594.20 = 39,842,909.20 : x - Step 2: Convert to fraction form
65,415,062.80/98,122,594.20 = 39,842,909.20/x - Step 3: Cross multiply
65,415,062.80x = 98,122,594.20 × 39,842,909.20 - Step 4: Simplify right side
65,415,062.80x = 3,909,489,611,179,047 - Step 5: Solve for x
x = 3,909,489,611,179,047/65,415,062.80 - Step 6: Final answer
x = 59,764,363.80
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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.