Finding the Fourth Proportional to 6,921,621.80, 10,382,432.70 and 4,087,269.80
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Solution
The fourth proportional to 6,921,621.80, 10,382,432.70 and 4,087,269.80 is: 6,130,904.70
Step by Step Solution
- Step 1: Write the proportion equation
6,921,621.80 : 10,382,432.70 = 4,087,269.80 : x - Step 2: Convert to fraction form
6,921,621.80/10,382,432.70 = 4,087,269.80/x - Step 3: Cross multiply
6,921,621.80x = 10,382,432.70 × 4,087,269.80 - Step 4: Simplify right side
6,921,621.80x = 42,435,803,625,242.45 - Step 5: Solve for x
x = 42,435,803,625,242.45/6,921,621.80 - Step 6: Final answer
x = 6,130,904.70
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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.