Finding the Fourth Proportional to 4,863,520.80, 6,712,006.21 and 2,688,017.13
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Solution
The fourth proportional to 4,863,520.80, 6,712,006.21 and 2,688,017.13 is: 3,709,655.70
Step by Step Solution
- Step 1: Write the proportion equation
4,863,520.80 : 6,712,006.21 = 2,688,017.13 : x - Step 2: Convert to fraction form
4,863,520.80/6,712,006.21 = 2,688,017.13/x - Step 3: Cross multiply
4,863,520.80x = 6,712,006.21 × 2,688,017.13 - Step 4: Simplify right side
4,863,520.80x = 18,041,987,662,426.33 - Step 5: Solve for x
x = 18,041,987,662,426.33/4,863,520.80 - Step 6: Final answer
x = 3,709,655.70
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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.