Finding the Fourth Proportional to 8,127,473.28, 11,213,642.88 and 6,403,248.96
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Solution
The fourth proportional to 8,127,473.28, 11,213,642.88 and 6,403,248.96 is: 8,834,694.95
Step by Step Solution
- Step 1: Write the proportion equation
8,127,473.28 : 11,213,642.88 = 6,403,248.96 : x - Step 2: Convert to fraction form
8,127,473.28/11,213,642.88 = 6,403,248.96/x - Step 3: Cross multiply
8,127,473.28x = 11,213,642.88 × 6,403,248.96 - Step 4: Simplify right side
8,127,473.28x = 71,803,747,109,171.41 - Step 5: Solve for x
x = 71,803,747,109,171.41/8,127,473.28 - Step 6: Final answer
x = 8,834,694.95
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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.