Finding the Fourth Proportional to 18,591,903.30, 25,652,622.99 and 11,249,553.90
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Solution
The fourth proportional to 18,591,903.30, 25,652,622.99 and 11,249,553.90 is: 15,521,840.90
Step by Step Solution
- Step 1: Write the proportion equation
18,591,903.30 : 25,652,622.99 = 11,249,553.90 : x - Step 2: Convert to fraction form
18,591,903.30/25,652,622.99 = 11,249,553.90/x - Step 3: Cross multiply
18,591,903.30x = 25,652,622.99 × 11,249,553.90 - Step 4: Simplify right side
18,591,903.30x = 288,580,565,002,384.12 - Step 5: Solve for x
x = 288,580,565,002,384.12/18,591,903.30 - Step 6: Final answer
x = 15,521,840.90
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.