Finding the Fourth Proportional to 3,718,016.88, 5,130,848.76 and 2,086,420.08
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Solution
The fourth proportional to 3,718,016.88, 5,130,848.76 and 2,086,420.08 is: 2,879,251.55
Step by Step Solution
- Step 1: Write the proportion equation
3,718,016.88 : 5,130,848.76 = 2,086,420.08 : x - Step 2: Convert to fraction form
3,718,016.88/5,130,848.76 = 2,086,420.08/x - Step 3: Cross multiply
3,718,016.88x = 5,130,848.76 × 2,086,420.08 - Step 4: Simplify right side
3,718,016.88x = 10,705,105,880,307.10 - Step 5: Solve for x
x = 10,705,105,880,307.10/3,718,016.88 - Step 6: Final answer
x = 2,879,251.55
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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.