Finding the Fourth Proportional to 12,979,659.76, 19,455,760.68 and 4,889,134.87
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Solution
The fourth proportional to 12,979,659.76, 19,455,760.68 and 4,889,134.87 is: 7,328,530.93
Step by Step Solution
- Step 1: Write the proportion equation
12,979,659.76 : 19,455,760.68 = 4,889,134.87 : x - Step 2: Convert to fraction form
12,979,659.76/19,455,760.68 = 4,889,134.87/x - Step 3: Cross multiply
12,979,659.76x = 19,455,760.68 × 4,889,134.87 - Step 4: Simplify right side
12,979,659.76x = 95,121,837,962,962.91 - Step 5: Solve for x
x = 95,121,837,962,962.91/12,979,659.76 - Step 6: Final answer
x = 7,328,530.93
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.