Finding the Fourth Proportional to 8,503,449.84, 11,727,541.35 and 7,185,331.17
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Solution
The fourth proportional to 8,503,449.84, 11,727,541.35 and 7,185,331.17 is: 9,909,656.67
Step by Step Solution
- Step 1: Write the proportion equation
8,503,449.84 : 11,727,541.35 = 7,185,331.17 : x - Step 2: Convert to fraction form
8,503,449.84/11,727,541.35 = 7,185,331.17/x - Step 3: Cross multiply
8,503,449.84x = 11,727,541.35 × 7,185,331.17 - Step 4: Simplify right side
8,503,449.84x = 84,266,268,409,618.88 - Step 5: Solve for x
x = 84,266,268,409,618.88/8,503,449.84 - Step 6: Final answer
x = 9,909,656.67
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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.