Finding the Fourth Proportional to 7,718,420.84, 11,579,394.78 and 2,669,727.08
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Solution
The fourth proportional to 7,718,420.84, 11,579,394.78 and 2,669,727.08 is: 4,005,200.60
Step by Step Solution
- Step 1: Write the proportion equation
7,718,420.84 : 11,579,394.78 = 2,669,727.08 : x - Step 2: Convert to fraction form
7,718,420.84/11,579,394.78 = 2,669,727.08/x - Step 3: Cross multiply
7,718,420.84x = 11,579,394.78 × 2,669,727.08 - Step 4: Simplify right side
7,718,420.84x = 30,913,823,814,176.64 - Step 5: Solve for x
x = 30,913,823,814,176.64/7,718,420.84 - Step 6: Final answer
x = 4,005,200.60
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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.