Finding the Fourth Proportional to 19,928,309.70, 29,892,464.55 and 13,125,864.90
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Solution
The fourth proportional to 19,928,309.70, 29,892,464.55 and 13,125,864.90 is: 19,688,797.35
Step by Step Solution
- Step 1: Write the proportion equation
19,928,309.70 : 29,892,464.55 = 13,125,864.90 : x - Step 2: Convert to fraction form
19,928,309.70/29,892,464.55 = 13,125,864.90/x - Step 3: Cross multiply
19,928,309.70x = 29,892,464.55 × 13,125,864.90 - Step 4: Simplify right side
19,928,309.70x = 392,364,451,211,339.31 - Step 5: Solve for x
x = 392,364,451,211,339.31/19,928,309.70 - Step 6: Final answer
x = 19,688,797.35
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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.