Finding the Fourth Proportional to 20,168,231.05, 30,243,423.61 and 5,787,962.47
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Solution
The fourth proportional to 20,168,231.05, 30,243,423.61 and 5,787,962.47 is: 8,679,382.96
Step by Step Solution
- Step 1: Write the proportion equation
20,168,231.05 : 30,243,423.61 = 5,787,962.47 : x - Step 2: Convert to fraction form
20,168,231.05/30,243,423.61 = 5,787,962.47/x - Step 3: Cross multiply
20,168,231.05x = 30,243,423.61 × 5,787,962.47 - Step 4: Simplify right side
20,168,231.05x = 175,047,800,818,991.91 - Step 5: Solve for x
x = 175,047,800,818,991.91/20,168,231.05 - Step 6: Final answer
x = 8,679,382.96
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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.