Finding the Fourth Proportional to 12,238,493.70, 18,357,740.55 and 5,861,201.70
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Solution
The fourth proportional to 12,238,493.70, 18,357,740.55 and 5,861,201.70 is: 8,791,802.55
Step by Step Solution
- Step 1: Write the proportion equation
12,238,493.70 : 18,357,740.55 = 5,861,201.70 : x - Step 2: Convert to fraction form
12,238,493.70/18,357,740.55 = 5,861,201.70/x - Step 3: Cross multiply
12,238,493.70x = 18,357,740.55 × 5,861,201.70 - Step 4: Simplify right side
12,238,493.70x = 107,598,420,119,818.94 - Step 5: Solve for x
x = 107,598,420,119,818.94/12,238,493.70 - Step 6: Final answer
x = 8,791,802.55
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1.5x scale
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.