Finding the Fourth Proportional to 7,648,724.18, 10,554,838.68 and 4,210,293.62
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Solution
The fourth proportional to 7,648,724.18, 10,554,838.68 and 4,210,293.62 is: 5,809,984.63
Step by Step Solution
- Step 1: Write the proportion equation
7,648,724.18 : 10,554,838.68 = 4,210,293.62 : x - Step 2: Convert to fraction form
7,648,724.18/10,554,838.68 = 4,210,293.62/x - Step 3: Cross multiply
7,648,724.18x = 10,554,838.68 × 4,210,293.62 - Step 4: Simplify right side
7,648,724.18x = 44,438,969,954,533.22 - Step 5: Solve for x
x = 44,438,969,954,533.22/7,648,724.18 - Step 6: Final answer
x = 5,809,984.63
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1.5x scale
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.