Finding the Fourth Proportional to 6,390,415.35, 9,585,707.74 and 2,130,584.99
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Solution
The fourth proportional to 6,390,415.35, 9,585,707.74 and 2,130,584.99 is: 3,195,905.72
Step by Step Solution
- Step 1: Write the proportion equation
6,390,415.35 : 9,585,707.74 = 2,130,584.99 : x - Step 2: Convert to fraction form
6,390,415.35/9,585,707.74 = 2,130,584.99/x - Step 3: Cross multiply
6,390,415.35x = 9,585,707.74 × 2,130,584.99 - Step 4: Simplify right side
6,390,415.35x = 20,423,164,976,115.82 - Step 5: Solve for x
x = 20,423,164,976,115.82/6,390,415.35 - Step 6: Final answer
x = 3,195,905.72
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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.