Finding the Fourth Proportional to 6,221,981.62, 8,585,417.10 and 3,608,374.06
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Solution
The fourth proportional to 6,221,981.62, 8,585,417.10 and 3,608,374.06 is: 4,979,024.09
Step by Step Solution
- Step 1: Write the proportion equation
6,221,981.62 : 8,585,417.10 = 3,608,374.06 : x - Step 2: Convert to fraction form
6,221,981.62/8,585,417.10 = 3,608,374.06/x - Step 3: Cross multiply
6,221,981.62x = 8,585,417.10 × 3,608,374.06 - Step 4: Simplify right side
6,221,981.62x = 30,979,396,357,920.43 - Step 5: Solve for x
x = 30,979,396,357,920.43/6,221,981.62 - Step 6: Final answer
x = 4,979,024.09
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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.