Finding the Fourth Proportional to 6,781,131.60, 9,358,134.84 and 3,725,422.80
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Solution
The fourth proportional to 6,781,131.60, 9,358,134.84 and 3,725,422.80 is: 5,141,178.63
Step by Step Solution
- Step 1: Write the proportion equation
6,781,131.60 : 9,358,134.84 = 3,725,422.80 : x - Step 2: Convert to fraction form
6,781,131.60/9,358,134.84 = 3,725,422.80/x - Step 3: Cross multiply
6,781,131.60x = 9,358,134.84 × 3,725,422.80 - Step 4: Simplify right side
6,781,131.60x = 34,863,008,898,410.35 - Step 5: Solve for x
x = 34,863,008,898,410.35/6,781,131.60 - Step 6: Final answer
x = 5,141,178.63
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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.