Finding the Fourth Proportional to 16,686,918.54, 25,034,281.61 and 5,171,783.99
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Solution
The fourth proportional to 16,686,918.54, 25,034,281.61 and 5,171,783.99 is: 7,758,885.88
Step by Step Solution
- Step 1: Write the proportion equation
16,686,918.54 : 25,034,281.61 = 5,171,783.99 : x - Step 2: Convert to fraction form
16,686,918.54/25,034,281.61 = 5,171,783.99/x - Step 3: Cross multiply
16,686,918.54x = 25,034,281.61 × 5,171,783.99 - Step 4: Simplify right side
16,686,918.54x = 129,471,896,680,719.11 - Step 5: Solve for x
x = 129,471,896,680,719.11/16,686,918.54 - Step 6: Final answer
x = 7,758,885.88
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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.