Finding the Fourth Proportional to 220,065,315.80, 330,097,973.70 and 118,028,643.80
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Solution
The fourth proportional to 220,065,315.80, 330,097,973.70 and 118,028,643.80 is: 177,042,965.70
Step by Step Solution
- Step 1: Write the proportion equation
220,065,315.80 : 330,097,973.70 = 118,028,643.80 : x - Step 2: Convert to fraction form
220,065,315.80/330,097,973.70 = 118,028,643.80/x - Step 3: Cross multiply
220,065,315.80x = 330,097,973.70 × 118,028,643.80 - Step 4: Simplify right side
220,065,315.80x = 38,961,016,156,939,064 - Step 5: Solve for x
x = 38,961,016,156,939,064/220,065,315.80 - Step 6: Final answer
x = 177,042,965.70
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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.