Finding the Fourth Proportional to 66,695,135.80, 100,042,703.70 and 55,357,727.80
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Solution
The fourth proportional to 66,695,135.80, 100,042,703.70 and 55,357,727.80 is: 83,036,591.70
Step by Step Solution
- Step 1: Write the proportion equation
66,695,135.80 : 100,042,703.70 = 55,357,727.80 : x - Step 2: Convert to fraction form
66,695,135.80/100,042,703.70 = 55,357,727.80/x - Step 3: Cross multiply
66,695,135.80x = 100,042,703.70 × 55,357,727.80 - Step 4: Simplify right side
66,695,135.80x = 5,538,136,759,800,653 - Step 5: Solve for x
x = 5,538,136,759,800,653/66,695,135.80 - Step 6: Final answer
x = 83,036,591.70
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1.5x scale
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.