Finding the Fourth Proportional to 3,913,860.21, 5,872,645.58 and 1,890,970.17
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Solution
The fourth proportional to 3,913,860.21, 5,872,645.58 and 1,890,970.17 is: 2,837,351.62
Step by Step Solution
- Step 1: Write the proportion equation
3,913,860.21 : 5,872,645.58 = 1,890,970.17 : x - Step 2: Convert to fraction form
3,913,860.21/5,872,645.58 = 1,890,970.17/x - Step 3: Cross multiply
3,913,860.21x = 5,872,645.58 × 1,890,970.17 - Step 4: Simplify right side
3,913,860.21x = 11,104,997,601,307.50 - Step 5: Solve for x
x = 11,104,997,601,307.50/3,913,860.21 - Step 6: Final answer
x = 2,837,351.62
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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.