Finding the Fourth Proportional to 11,471,560.74, 15,827,187.88 and 6,509,181.20
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Solution
The fourth proportional to 11,471,560.74, 15,827,187.88 and 6,509,181.20 is: 8,980,646.67
Step by Step Solution
- Step 1: Write the proportion equation
11,471,560.74 : 15,827,187.88 = 6,509,181.20 : x - Step 2: Convert to fraction form
11,471,560.74/15,827,187.88 = 6,509,181.20/x - Step 3: Cross multiply
11,471,560.74x = 15,827,187.88 × 6,509,181.20 - Step 4: Simplify right side
11,471,560.74x = 103,022,033,726,364.39 - Step 5: Solve for x
x = 103,022,033,726,364.39/11,471,560.74 - Step 6: Final answer
x = 8,980,646.67
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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.