Finding the Fourth Proportional to 478,479,489.94, 717,719,235.87 and 114,973,846.42
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Solution
The fourth proportional to 478,479,489.94, 717,719,235.87 and 114,973,846.42 is: 172,460,769.86
Step by Step Solution
- Step 1: Write the proportion equation
478,479,489.94 : 717,719,235.87 = 114,973,846.42 : x - Step 2: Convert to fraction form
478,479,489.94/717,719,235.87 = 114,973,846.42/x - Step 3: Cross multiply
478,479,489.94x = 717,719,235.87 × 114,973,846.42 - Step 4: Simplify right side
478,479,489.94x = 82,518,941,197,597,136 - Step 5: Solve for x
x = 82,518,941,197,597,136/478,479,489.94 - Step 6: Final answer
x = 172,460,769.86
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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.