Finding the Fourth Proportional to 5,429,045.99, 8,143,564.35 and 1,385,533.49
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Solution
The fourth proportional to 5,429,045.99, 8,143,564.35 and 1,385,533.49 is: 2,078,299.05
Step by Step Solution
- Step 1: Write the proportion equation
5,429,045.99 : 8,143,564.35 = 1,385,533.49 : x - Step 2: Convert to fraction form
5,429,045.99/8,143,564.35 = 1,385,533.49/x - Step 3: Cross multiply
5,429,045.99x = 8,143,564.35 × 1,385,533.49 - Step 4: Simplify right side
5,429,045.99x = 11,283,181,094,177.26 - Step 5: Solve for x
x = 11,283,181,094,177.26/5,429,045.99 - Step 6: Final answer
x = 2,078,299.05
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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.