Finding the Fourth Proportional to 4,128,653.28, 5,697,431.28 and 2,293,056.48
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Solution
The fourth proportional to 4,128,653.28, 5,697,431.28 and 2,293,056.48 is: 3,164,356.71
Step by Step Solution
- Step 1: Write the proportion equation
4,128,653.28 : 5,697,431.28 = 2,293,056.48 : x - Step 2: Convert to fraction form
4,128,653.28/5,697,431.28 = 2,293,056.48/x - Step 3: Cross multiply
4,128,653.28x = 5,697,431.28 × 2,293,056.48 - Step 4: Simplify right side
4,128,653.28x = 13,064,531,715,958.70 - Step 5: Solve for x
x = 13,064,531,715,958.70/4,128,653.28 - Step 6: Final answer
x = 3,164,356.71
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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.