Finding the Fourth Proportional to 28,471,488.64, 42,714,515.68 and 8,276,730.64
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Solution
The fourth proportional to 28,471,488.64, 42,714,515.68 and 8,276,730.64 is: 12,417,213.07
Step by Step Solution
- Step 1: Write the proportion equation
28,471,488.64 : 42,714,515.68 = 8,276,730.64 : x - Step 2: Convert to fraction form
28,471,488.64/42,714,515.68 = 8,276,730.64/x - Step 3: Cross multiply
28,471,488.64x = 42,714,515.68 × 8,276,730.64 - Step 4: Simplify right side
28,471,488.64x = 353,536,540,814,207.50 - Step 5: Solve for x
x = 353,536,540,814,207.50/28,471,488.64 - Step 6: Final answer
x = 12,417,213.07
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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.