Finding the Fourth Proportional to 6,437,348.40, 9,640,276.20 and 3,067,618.80
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Solution
The fourth proportional to 6,437,348.40, 9,640,276.20 and 3,067,618.80 is: 4,593,924.50
Step by Step Solution
- Step 1: Write the proportion equation
6,437,348.40 : 9,640,276.20 = 3,067,618.80 : x - Step 2: Convert to fraction form
6,437,348.40/9,640,276.20 = 3,067,618.80/x - Step 3: Cross multiply
6,437,348.40x = 9,640,276.20 × 3,067,618.80 - Step 4: Simplify right side
6,437,348.40x = 29,572,692,508,312.55 - Step 5: Solve for x
x = 29,572,692,508,312.55/6,437,348.40 - Step 6: Final answer
x = 4,593,924.50
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.