Finding the Fourth Proportional to 3,366,637.12, 4,645,989.90 and 1,916,426.49
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Solution
The fourth proportional to 3,366,637.12, 4,645,989.90 and 1,916,426.49 is: 2,644,686.01
Step by Step Solution
- Step 1: Write the proportion equation
3,366,637.12 : 4,645,989.90 = 1,916,426.49 : x - Step 2: Convert to fraction form
3,366,637.12/4,645,989.90 = 1,916,426.49/x - Step 3: Cross multiply
3,366,637.12x = 4,645,989.90 × 1,916,426.49 - Step 4: Simplify right side
3,366,637.12x = 8,903,698,099,209.99 - Step 5: Solve for x
x = 8,903,698,099,209.99/3,366,637.12 - Step 6: Final answer
x = 2,644,686.01
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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.