Finding the Fourth Proportional to 28,471,488.26, 42,714,515.10 and 8,276,730.26
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Solution
The fourth proportional to 28,471,488.26, 42,714,515.10 and 8,276,730.26 is: 12,417,212.49
Step by Step Solution
- Step 1: Write the proportion equation
28,471,488.26 : 42,714,515.10 = 8,276,730.26 : x - Step 2: Convert to fraction form
28,471,488.26/42,714,515.10 = 8,276,730.26/x - Step 3: Cross multiply
28,471,488.26x = 42,714,515.10 × 8,276,730.26 - Step 4: Simplify right side
28,471,488.26x = 353,536,519,560,440.06 - Step 5: Solve for x
x = 353,536,519,560,440.06/28,471,488.26 - Step 6: Final answer
x = 12,417,212.49
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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.