Finding the Fourth Proportional to 40,479,988.20, 60,719,935.11 and 13,186,236.88
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Solution
The fourth proportional to 40,479,988.20, 60,719,935.11 and 13,186,236.88 is: 19,779,339.95
Step by Step Solution
- Step 1: Write the proportion equation
40,479,988.20 : 60,719,935.11 = 13,186,236.88 : x - Step 2: Convert to fraction form
40,479,988.20/60,719,935.11 = 13,186,236.88/x - Step 3: Cross multiply
40,479,988.20x = 60,719,935.11 × 13,186,236.88 - Step 4: Simplify right side
40,479,988.20x = 800,667,447,698,688.88 - Step 5: Solve for x
x = 800,667,447,698,688.88/40,479,988.20 - Step 6: Final answer
x = 19,779,339.95
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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.