Finding the Fourth Proportional to 11,509,124.58, 15,880,221.01 and 6,613,400.82
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Solution
The fourth proportional to 11,509,124.58, 15,880,221.01 and 6,613,400.82 is: 9,125,130.75
Step by Step Solution
- Step 1: Write the proportion equation
11,509,124.58 : 15,880,221.01 = 6,613,400.82 : x - Step 2: Convert to fraction form
11,509,124.58/15,880,221.01 = 6,613,400.82/x - Step 3: Cross multiply
11,509,124.58x = 15,880,221.01 × 6,613,400.82 - Step 4: Simplify right side
11,509,124.58x = 105,022,266,649,315.23 - Step 5: Solve for x
x = 105,022,266,649,315.23/11,509,124.58 - Step 6: Final answer
x = 9,125,130.75
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.