Finding the Fourth Proportional to 5,011,188.80, 6,915,440.70 and 2,719,349.49
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Solution
The fourth proportional to 5,011,188.80, 6,915,440.70 and 2,719,349.49 is: 3,752,702.38
Step by Step Solution
- Step 1: Write the proportion equation
5,011,188.80 : 6,915,440.70 = 2,719,349.49 : x - Step 2: Convert to fraction form
5,011,188.80/6,915,440.70 = 2,719,349.49/x - Step 3: Cross multiply
5,011,188.80x = 6,915,440.70 × 2,719,349.49 - Step 4: Simplify right side
5,011,188.80x = 18,805,500,140,670.25 - Step 5: Solve for x
x = 18,805,500,140,670.25/5,011,188.80 - Step 6: Final answer
x = 3,752,702.38
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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.