Finding the Fourth Proportional to 7,216,753.24, 9,959,118.64 and 4,316,143.68
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Solution
The fourth proportional to 7,216,753.24, 9,959,118.64 and 4,316,143.68 is: 5,956,277.78
Step by Step Solution
- Step 1: Write the proportion equation
7,216,753.24 : 9,959,118.64 = 4,316,143.68 : x - Step 2: Convert to fraction form
7,216,753.24/9,959,118.64 = 4,316,143.68/x - Step 3: Cross multiply
7,216,753.24x = 9,959,118.64 × 4,316,143.68 - Step 4: Simplify right side
7,216,753.24x = 42,984,986,976,406.20 - Step 5: Solve for x
x = 42,984,986,976,406.20/7,216,753.24 - Step 6: Final answer
x = 5,956,277.78
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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.